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revision 1.163 by jmc, Thu Jun 12 21:25:24 2003 UTC revision 1.1098 by jmc, Sat May 16 13:45:27 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o eesupp & mdsio (SingleCpuIO):
8     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
9       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
10       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
11     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
12     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
13       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
14    o pkg/exch2:
15     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
16       read parameter file "data.exch2" if it exists; otherwise try default regular
17       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
18     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
19       with new code (not to be used, just as a backup solution).
20     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
21       in utils/exch2/input.
22    
23    checkpoint61n
24    o eesupp & mdsio (SingleCpuIO):
25      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
26        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
27        receive real*4 array (instead of real*8) to read/write 32.bit files.
28        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
29         and remove new mapping S/R)
30    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
31      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
32        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
33        when using exch2. Add S/R to map global io-buffer to global model array.
34      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
35    
36    checkpoint61m
37    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
38      and add 3 other S/R for other types (R4,R8,RS).
39      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
40    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
41     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
42     - reduce number of macro definitions (keep only those which are used);
43       can always call directly the corrresponding S/R if needed.
44     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
45       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
46     Fixed wrong type of arg in:
47       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
48       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
49     To fix: global_sum of var in common block is wrong (multi-threaded) in:
50       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
51     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
52    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
53      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
54    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
55    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
56      edges are closed (zero depth); might happen with "blank tiles";
57      for now, disabled if using OBCS.
58    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
59      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
60    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
61      to reduce length of 1.D array print in STDOUT.
62    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
63      + use 48 tiles (16x8): this will allow to test "blank tiles".
64    o start to test MPI + multi-threaded (change testreport to skip tests
65      where number of tiles do not match).
66    o genmake2: add option "-omp" to turn on Open-MP ;
67      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
68    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
69      and keep the original tile numbering. Note: compatible with old
70      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
71    
72    checkpoint61l
73    o Overlaps had been forgotten in calculating ijk keys : fixed
74    o fix cyrus makedepend for gcc 4.4
75    o experiment fizhi-cs-aqualev20:
76      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
77      and generate new output. Note: new output is much closer to the old
78      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
79      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
80    o pkg/fizhi:
81     - change to avoid indices going deliberately over array-bounds
82     - remove unnecessary MPI stuff
83     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
84     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
85       does not go over array-bounds and therefore returns reliable output.
86     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
87       this S/R has 4 output arguments, which are used inside "get_alarm";
88       when it is called with the same variable "ndum" in place of several
89       output arguments, this produces weird side effect inside "get_alarm"
90      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
91       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
92       address) and produces error.
93    o tools/gemake2: (March 27-29 2009)
94      with option "-mpi": link *_mpi files from "MODS" dir (this is what
95      testreport does).
96    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
97    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
98       update lab_sea.lsr & lab_sea.salt_plume results
99    o pkg/seaice:
100      Major overhaul of the LSOR solver: change discretization from original
101      finite differences to finite volume. The old routine is still in the
102      file seaice_lsr.F and can be turned on with the CPP-flag
103      SEAICE_OLD_AND_BAD_DISCRETIZATION
104      Along with this change, the discretization of the strain rates is changed.
105      The same flag turns on the old discretization in seaice_calc_strainrates.F
106      All verification experiments with seaice are affected (except for
107      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
108      results by setting the above flag.
109      Further changes involve changes in defaults:
110      - ALLOW_FLOODING is defined and turned on by default
111      - SEAICEadvSnow = .true. is now the default
112      - SEAICEadvSalt = .true. is now the default
113      - SEAICEadvAge  = .true. is now the default
114      - SEAICE_clipVelocities  = .false. is now the default
115                                         (as per J. Zhang's recommendation)
116      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
117        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
118      - seaice_growth: replace computation of UG by a simple copy from wspeed
119    
120    checkpoint61k
121    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
122      seaice_lsr: fixed a few metric terms,
123                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
124                  add more debugging diagnostics
125      seaice_evp: removed superfluous many metric terms of FV discretization
126                  of stress divergence
127                  affects lab_sea, lab_sea.hb87
128      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
129                  of stress divergence for non-evp solver
130                  (this part is not tested anywhere)
131      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
132                  they were effectively only half slip
133                  affects lab_sea.hb87
134      updated all relevant verification experiments (except lab_sea//output_adm.txt
135        which was left over, but fails at level 7 & 6)
136    
137    checkpoint61j
138    o pkg/seaice: turn a few hard wired parameters into run time parameters
139    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
140      time in seconds as promised by the usints in seaice_monitor and exf_monitor
141    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
142      that are not cubed-sphere grids
143    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
144    o pkg/ctrl:
145      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
146    o non-hydrostatic (calc_gw.F):
147      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
148      update output of exp. global_ocean.cs32x15.viscA4
149    o remove backward compatibility for thetaMin,phiMin
150      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
151    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
152      interpolated wind field not only for curvilineargrid=.true., but also
153      for a rotated grid (rotateGrid=.true.)
154    o pkg/exf: add capability to bypass interpolation for runoff
155      by setting yet another CPP-flag
156    o eesupp/src, B-grid exchange:
157      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
158    o autodiff
159      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
160      allows to switch to single-prec common blocks;
161      corresponding switch occurs in tamc.h, integer isbyte
162      TAF store directivs "byte" and "kind" seem equivalent;
163      Most tamc.h have been updated correspondingly.
164    
165    checkpoint61i
166    o autodiff:
167      fix autodiff_sore/_restore indices for obcs
168      (spotted by I. Hoteit, M. Mazloff)
169    o pkg/autodiff, pkg/ctrl:
170      Add flag to reduce all tapelev I/O to single-prec.
171      In data.ctrl set
172        doSinglePrecTapelev = .TRUE.
173    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
174      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
175    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
176      real fresh water flux (not yet)
177    o pkg/mdsio & rw:
178     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
179     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
180    o pkg/flt:
181     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
182       init_fixed & ini_varia.
183     - clean-up & simplify linear interpolation S/R:
184       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
185     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
186     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
187     - add vert. coordinate & horiz. indices to output files.
188     - change vertical position in initial condition, from index to depth [m].
189     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
190       (easier to get to a curvilinear grid) ; delX,delY no longer used.
191    o pkg/ggl90: a few modifications:
192     - fix bottom boundary condition, and interpolation of KappaE
193       near top and bottom
194     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
195     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
196     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
197    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
198      (maintain temporary backward compatibility, until next checkpoint)
199    
200    checkpoint61h
201    o pkg/diagnostics with "periodic averaging diagnostics":
202      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
203    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
204    o pkg/obcs: fix loop ranges for balancing code
205    o pkg/flt:
206     - improve criteria for finding which tile owns a float.
207     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
208    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
209      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
210      with ocean biogeo)
211    o pkg/flt:
212     - do some cleaning and fix the restart ;
213     - add output.txt in flt_example/results to get this pkg tested.
214    o genmake2: add an EXTENDED_SRC option and flag.
215       for now, cannot be turned on on command line (only through genmake_local)
216    o pkg/mdsio: read/write vector:
217     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
218     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
219       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
220     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
221      (drop to 4 digits matching for grad). But this test does not look very
222      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
223    
224    checkpoint61g
225    o pkg/flt:
226      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
227       + make OPTIONS file more standard.
228      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
229      - fix _BYTESWAPIO CPP-Flag
230      - standard reading of file-parameter "data.flt"
231      - fix argument list of S/R FLT_RESTART
232      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
233    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
234    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
235      a still unfixed compiler/optimization bug
236    
237    checkpoint61f
238    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
239      update results of global_ocean.cs32x15.icedyn test.
240    o move getcon.F from model/src to pkg/fizhi.
241    o pkg/exf: add parameter for extrapolation of temp up to the surface
242       and option to prevent negative evap (in bulk_largeyeager04 only).
243    o Prather Advection scheme: fix tracer conservation for divergent flow
244      (e.g., when using NonLin Free-Surface).
245    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
246    o gmredi (Visbeck-variable-K):
247     - add more parameters to Visbeck-variable-K.
248     - use a 5 points average for dSigmaR in Visbeck-K calculation
249       (more "homogenous": same stencil and same weights as in dSigmaH)
250     - update output of ideal_2D_oce experiment.
251    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
252      (#undef REAL4_IS_SLOW)
253     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
254       coordinate variable
255     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
256       (surface forcing fields), removes some of the functionality
257     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
258     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
259       probably not all: copy _RS surface flux fields to RL field before
260       calling DIAGNOSTICS_FILL
261     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
262       real*4 (CALL EXCH_*_RS) versions.
263     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
264       (generate new output).
265    
266    checkpoint61e
267    o gmredi (Visbeck-variable-K):
268      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
269      - change computation of Visbeck-K where Slope > Smax :        
270        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
271        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
272    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
273      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
274    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
275    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
276      does not become too large (to avoid precision problems in implicit-diffusion
277      solver); update ideal_2D_oce output.
278    o pkg ggl90:
279      - in ggl90_cal.F: compute only one set of visc/diff, used to
280        step forward TKE/T/S/momentum
281      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
282        have Prandlt =1)
283    o gmredi (fm07):
284      - add lower limit on Transition layer thickness + lower limit on 1/lambda
285      - allow to set few more params from data.gmredi
286    o pkg ggl90:
287          - add missing sqrt(2) factor in computation of mixing length
288            scale in ggl90_calc.F
289            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
290    
291    checkpoint61d
292    o adjoint modifs
293      - adapt to new field rhoInSitu
294      - allow to revert from StoreDynVars2D, StoreDynVars3D
295        to individual fields
296        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
297    o store 3-D (in-situ) density in commom block (DYNVARS.h)
298     - save 1 rho computation.
299     - no longer modify T & S inland when using down_slope pkg.
300    o gad_som : allow to switch to SOM advection for T & S without corresponding
301      pickup files (using new S/R: MDS_CHECK4FILE).
302    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
303      (for useSingleCpuIO to work in multi-threaded)
304    o pkg/shelfice:
305     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
306       with SHELFICEtopoFile in data.shelfice
307     - move code for reading ice shelf topography and modifying hFacC into separate
308       subroutines of the shelfice package
309     - separate initialisation of "fixed" and "variable" variables
310     - kTopC is not (yet) replaced by kSurfC, although this is possible
311    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
312    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
313      and rename:
314      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
315      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
316    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
317    
318    checkpoint61c
319    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
320      to add mass source/sink of fluid in the interior (3-D generalisation
321      of oceanic real-fresh water flux).
322    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
323    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
324    o new pkg: down_slope
325      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
326      - presently, modify T & S inland (dwnslp_calc_rho.F).
327        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
328      - implementation for ocean in P-coords not tested.
329      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
330    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
331      (to facilitate conversion of oceanic pkg to p-coordinate).
332    o change FIND_RHO to FIND_RHO_2D :
333      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
334    o new pkg: cheapaml
335    
336    checkpoint61b
337    o exch2:
338      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
339      - no longer depend on the order sequence (N,S,E,W).
340      - 3rd exchange no longer needed (tested with 24 tiles).
341      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
342      - exch_UV_A-grid readily available (but not yet tested).
343      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
344      (both are no longer needed) in exch_uv: no effect in forward run; but
345       get truncation error differences with adjoint exch.
346    o exch2:
347     - change index-bounds storage (moved from target to local tile,
348       more intuitive this way) ; rename/remove some variables.
349     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
350    
351    checkpoint61a
352    o exch2/matlab-topology-generator:
353      fix bug in index bounds for N-S internal exchange (hard to tell if this
354      had any effect on the solution).
355    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
356      is exceeded
357    o testreport: modify syntax of awk, so that it works also with
358      awk, and not only with nawk and gawk
359    
360    checkpoint61
361    o autodiff
362      Change default for TAF usage by removing argument '-nonew_arg'
363      This changes TAF subroutine argument list (ordering of active var.)
364      Omission of this flag leads to incompatibility w.r.t. TAMC
365      To restore TAMC-compatibility, need following modifs:
366      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
367      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
368      Tested TAF version is 1.9.22
369      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
370    
371    checkpoint60
372    --->>> This is the last checkpoint for which generating the adjoint
373    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
374    --->>> by default.
375    --->>> Future checkpoints will ommit this flag by default.
376    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
377    o pkg/grdchk: Add gradient check to etan0 perturbations.
378    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
379    o pkg/autodiff: more flexibility in zeroadj.
380      model/src: modifying do_oceanic_phys.F accordingly.
381    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
382    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
383      special setup of gmredi for which the adjoint is stable
384      enough for parameter optimization.
385    o bridging the gap between eddy stress and GM.
386      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
387          along with a change in CPP option (now ALLOW_EDDYPSI).
388      -> when using GM w/ GM_AdvForm:
389          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
390          is applied either in the tracer Eq. or in momentum Eq.
391          depending on data.gmredi (intro. GM_InMomAsStress).
392      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
393      The key modifications are in model/src/taueddy_external_forcing.F
394      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
395    
396    checkpoint59r
397    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
398      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
399      fix option to read coriolis(@ cell-corner) from files with CS-grid.
400    o pkg/mnc: add some attributes to standard 1D-coordinate variables
401    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
402      mass points, when using mnc for output
403      - add runtime parameter (missing_value, missing_value_int) to override
404        default (which is the value of getcon('UNDEF'))
405    o pkg/mnc: prepare mnc for the actual use of missing values with the
406      diagnostics package: small fix in mnc_cw_readwrite.template and more
407      initialisation of never used fields
408      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
409      versions
410    o pkg/thsice/thsice_ini_vars.F added default initial values so that
411      thermodynamics sea ice solver does not blow up when some initial fields
412      are missing.
413    o move from external_forcing_surf.F to ini_forcing.F
414      the p-coord. hack consisting in using pLoad to set phi0surf ;
415      update output of tutorial_global_oce_in_p (affected @ truncation level).
416    o Freshen up a bit hs94.1x64x5, notably:
417      remove rotationPeriod and tRef=5*0. (adjoint only), and add
418      exactConserv=.TRUE.
419    o pkg/generic_advdiff:
420      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
421      applies to files where Temperature & Salinity 2nd Order moments are used.
422    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
423      this uses a dynamically allocated internal state data structure
424      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
425      and requires a fortran 90 compiler
426    
427    checkpoint59q
428    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
429       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
430    o Refresh tutorial_global_oce_biogeo, notably:
431      - change bathymetry (put back seamounts in ACC, use hFacs)
432      - change EOS (POLY3 --> JMD95Z)
433      - use Bryan-Lewis vertical diffusivity
434      - use multidimensional advection
435      - remove old virtual virtual in dic pkg, now done through ptracer pkg
436      - change a couple of parameters in dic pkg
437    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
438    o pkg/obcs: change default to OBCSfixTopo = .true.,
439      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
440      - replace "debugMode" with "debugLevel .GE. debLevB"
441    o implementation of TAF directives for gchem,cfc,dic
442    o remove "exp5" (replaced by tutorial_deep_convection).
443    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
444      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
445      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
446      --> changes results in exp4, seaice_obcs
447    o tutorial_deep_convection :
448      update the set-up and increase resolution and domain size ; start
449      from pseudo initial conditions = output at t=120mn in order to see
450      something happening when running testreport.
451    o pkg/seaice: add os7mp as an advection scheme
452                  add check for advection schemes
453                  add a flag for restoring T and S underneath sea ice
454    o pkg/my82: add netcdf-support and diagnostics
455    o thsice pkg:
456      - Now hsMax limits snow height by turning it into ice following
457        flooding scheme (and now conserving energy)
458      - Slight rewriting of the formula in thsice_calc_thick.F
459      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
460      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
461    
462    checkpoint59p
463    o gchem / dic / cfc :
464      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
465      - add new parameter files: "data.dic" & "data.cfc" ;
466      - various re-arrangement in initialisation & header file ;
467      - fix tutorial_global_oce_biogeo for multi-threaded test.
468    o pkg/dic: test for "pickup_dic" file when restarting ;
469      if no pickup-file, can restart with a re-initialised pH (same as it did
470      before) providing pickupStrictlyMatch is set to False.
471    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
472      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
473    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
474      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
475    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
476     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
477       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
478    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
479       scheme to use for vorticty-term ;
480     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
481       (with default selectVortScheme, return to original discretisation)
482     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
483    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
484    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
485      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
486      also fix diagnostics VISCAHW & VISCA4W.
487    
488    checkpoint59o
489    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
490    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
491      move a few statemens out the main loop into separate loops
492    o pkg/shelfice:
493      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
494        (kg/m^2/s), does not break tests, because in verification/isomip,
495        rhoConstFresh=rhoConst (by accident)
496      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
497      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
498        new file model/src/seawater.F, so that they are available for all pkgs.
499      - convert potential temperature into in-situ temperature. This changes the
500        isomip tests => update tests
501    o add a flag writePickupAtEnd (default=true) to be able to suppress
502      writing a pickup at the last timestep
503    o tools/mpack-1.6 :
504      - disable automake (not working) and autoconf (not needed).
505      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
506        also cleaner with much less compilation warnings.
507    o pkg/profiles:
508      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
509      (for "less than 32 characters name" compiler requirement)
510    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
511      conditions that have a different sampling frequency than S/T/U/V obcs
512    o pkg/diagnostics (stats-diags):
513      - fix global Min/Max in case 1 processor get only empty tiles
514    o genmake2: replace (4 times)
515         make genmake_tc_1.o >> genmake_warnings 2>&1
516      with
517         COMM="$CC $CFLAGS -c genmake_tc_1.c"
518         echo $COMM >> genmake_warnings
519         $COMM >> genmake_warnings 2>&1
520      to make genmake2 always see the value of CC as specified in the optfile.
521    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
522      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
523      - modify verification advect_cs test to test SOM-advection on CS-grid.
524    o pkg/ctrl:
525      - Rewrite of ctrl_map_ini_ecco.F,
526        introducing a generic routine (ctrl_map_ini_gen.F).
527      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
528    
529    checkpoint59n
530    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
531      number in dedicate array "hdiag":
532      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
533        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
534      - many small changes (integer format) for large number of diagnostics
535      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
536        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
537    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
538      usingSphericalGrid, this allows to define the rotated grid coordinates
539      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
540      geographical coordinates according to the inverse of the rotation defined
541      by the Euler angles, so that Coriolis parameter and online-interpolation by
542      exf works with the geographical coordinates on XC/YC/XG/YG.
543      Naturally, this feature does not work with all packages, so some
544      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
545      profiles), because there the coordinates are assumed to be regular
546      spherical grid coordinates.
547    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
548      - introduce isopycnal diffusion coefficient control.
549    o tools/adjoint_options:
550      - additional control vector components.
551    o pkg/mnc: have mnc create marginally meaning full coordinate variables
552      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
553    o pkg/mypackage:
554      - add example of read/write pickup for state-var ;
555      - add entry points to the main code for state-vars diags & write-pickup.
556    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
557      transitions for useExfYearlyFields
558      - add new subroutine that determines the file to read from for
559        use*YearlyFields = .TRUE. and .FALSE.
560      - add a verification experiment to global_with_exf that tests
561        useExfYearlyFields with USE_EXF_INTERPOLATION defined
562    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
563      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
564      subroutines (which could be generated from a template, because they are
565      almost identical), for now they are included in obcs_prescribe_read.F for
566      simplicity
567    o pkg/exf:
568      - add a little more diagnostic to exf_interp_read (in analogy to
569        mds_read_field, can be turned off with debugLevel < debugLevA=1)
570      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
571        ugly but fast by unrolling short inner loops, inserting a unroll=8
572        directive in routine lagran, and splitting a loop and making do while the
573        outermost loop (the latter requires the intoduction of index arrays)
574    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
575    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
576      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
577    o verification/seaice_obcs: updated for restart test and latest options
578    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
579      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
580      for now this is only available for the C-grid code and also within
581      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
582    
583    checkpoint59m
584    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
585      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
586    o gad_som : fix flux output (& diagnostics) to have same units as other  
587      advection scheme fluxes (was previously multiplied by deltaT).  
588    o added verification/seaice_obcs both to test seaice open boundaries
589      and to provide an example matlab scrpt for generating them
590    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
591    o pkg/salt_plume: clean up salt_plume_frac.F to
592      remove redundancy in PlumeMethod 1 and 4
593    o pkg/kpp: added saltplume diagnostics
594    o pkg/obcs and pkg/seaice:
595      - do not set uice and vice to zero when OB*icefile are unspecified
596      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
597      - moved seaice tracer obcs after call to seaice_growth
598    o pkg/salt_plume: added various options for salt plume depth
599      criterion and for vertical distribution of the salt
600    
601    checkpoint59l
602    o pkg/ptracers: new version of ptracers pickup:
603      read meta file and write only fields which are needed to restart.
604      ( same logic as main pickup file ; also using pickupStrictlyMatch )
605    o pkg/seaice:
606      - add timescale for melting due to warm mixed layer as a means of
607        setting SEAICE_availHeatFrac more conveniently
608      - add a CPP-flag/runtime parameter check for flooding algorithm
609      - reformulated availHeat in seaice_growth.F to be independent of AREA
610    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
611      unit changes
612    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
613    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
614      SX vector computer.
615    o pkg/seaice:
616      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
617        seaice forcing fields can now be read only through pkg/exf
618      - removed some unused halos
619    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
620    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
621      or U/VICE from U/VWIND before computing U/VSTRESS
622    
623    checkpoint59k
624    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
625      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
626    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
627      all experiments pass when compile with un-initialised var. checking option.
628    o added pkg/salt_plume
629    o script to test restart (for now, in MITgcm_contrib/jmc_script)
630    o pkg/seaice: new read/write pickup version.
631      read meta file and write only fields which are needed to restart.
632      ( same logic as main pickup file ; also using pickupStrictlyMatch )
633    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
634    o lab_sea.hb87: modify the domain & update output.hb87.txt :
635      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
636      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
637      process. Fixed here by closing the domain at the Northern boundary.
638    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
639    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
640      a set of consecutive levels in/from a 3-D array.
641    o pkg/ptracers:
642      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
643      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
644    
645    checkpoint59j
646    o in pkgs: dic, obcs, offline, rbcs:
647      standard way to compute coeff. for time interpolation between 2 time reccords
648      which retains full precision (& make results less dependent on compiler).
649      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
650    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
651      packages instead of reading ice cover and wind speed separately
652    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
653     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
654      to allow to compile customized code before the update)
655    o cleaning-up:
656      - fix CPP instruction syntax in pkg/obcs
657      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
658        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
659      - fix some threads issue in IO parts.
660    o pkg/dic:
661      - add tons of "_d 0" (--> much better testreports !)
662       and then update outputs of tutorial_global_oce_biogeo
663    o pkg/mom_fluxform:
664      add a special version of momentum advection intended to conserve momentum
665      next to a bathymetry step or a coastline edge. (default = off = #undef)
666    o new read/write pickup version:
667      - for now, only implemented for main (mdsio) pickup file.
668      - write out only what is needed to restart; merge pickup_nh , pickup_ph
669        and main pickup together.
670      - read meta file; read only what is needed to restart; stop if a field
671        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
672        if it make sense (even if the restart is not perfect).
673      - if no meta file, assume that pickup to read corresponds exactly to
674        a pickup that would currently be written.
675      - read pickup written in the old format (until checkpoint59i) if it
676        recognizes an old meta file (no field-list).
677      - add a meta file in exp. which starts from a pickup: 2 cases:
678        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
679         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
680        b) a meta file describing the content of the associated pickup file
681         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
682    o pkg/mdsio & pkg/rw:
683      - new routine to read a meta file ; new set of routine to read
684        Multiple-fields file (with meta file).
685    o added open boundary conditions capability for seaice
686        HSNOW, HSALT, UICE, and VICE
687    
688    checkpoint59i
689    o adjoint:
690      * fix multiDimAdvection adjoint
691        (partial recomputation problem by TAF for fVerT(:,:,kDown)
692        and comlev1 size definition (maxpass vs. max. number of tracers)
693      * verification/global_ocean.90x45x15 adjoint now tests
694        NLFS and multiDimAdvection using DST3 (=30)
695      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
696    o pkg/kpp: add "_d 0" to real constant (if missing);
697      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
698      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
699    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
700      for internal parameters related to restart process (formerly from PARAMS.h)
701      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
702    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
703      as argument. (only atm2d & obcs write_pickup have not yet been updated)
704    o pkg/monitor:
705      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
706      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
707      - account for deep Atmosphere factor and density factor (anelastic)
708    o added open boundary conditions capability for seaice HEFF and AREA
709    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
710      thermodynamics
711      - requires a little reorganization, which affects the testreport results
712        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
713        so that now the conservative form is tested
714      - add a few comments
715    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
716    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
717    o add new diagnostics to seaice: advective, diffusive fluxes (only for
718      multidim-advection, for scheme 2 they are not filled) and transports,
719      thermodynamic growth rates
720    o change units of EmPmR (inside the code, + within coupling interface)
721      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
722      Affects results @ truncation level (cg2d match) and update output of
723       experiments: lab_sea(6), global_ocean.90x40x15(10),
724      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
725      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
726      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
727      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
728    
729    checkpoint59h
730    o pkg/exf:
731      - improve vectorization by moving if-statement out of loops in
732        exf_mapfields, exf_radiation
733      - exf_bulkformulae.F: introduce 2D fields and vectorize code
734    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
735    o testreport:
736      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
737        monitor & update offline_exf_seaice exp. output.
738      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
739    o pkg/seaice:
740      - bug fix in the evp solver: boundary conditions were affected be
741        masking of zMax/zMin (changes results)
742      - minor bug fix in boundary conditions in seaice_calc_strainrates
743        (changes results for no_slip)
744      - seaice_lsr.F: make interpolation of eta dependent on boundaries
745      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
746      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
747        stress formulation and no-slip boundary conditions
748    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
749      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
750    o pkg/seaice: a first HSALT time stepping equation has been checked in
751    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
752      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
753      without requiring DO-IF statements
754    o pkg/thsice:
755      use continuous power-law function for partition of energy between lateral
756      melting/freezing and thinning/thickening ; old code using step function
757      still available with #undef THSICE_FRACEN_POWERLAW
758      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
759    o testreport: change AD testing : check against results/output_adm.txt
760      using same scripts as for forward test.
761    
762    checkpoint59g
763    o adjoint testing: in preparation for changing testreport:
764      - output format: cost and grad written on separated lines
765      - ad output results in directory "results" (instead of "results_ad")
766    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
767    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
768    o pkg/ecco: allow user defined cost function contributions
769    o testreport:
770      Allow to choose (per experiment) the list of tested output variables
771       and the main variable (used to issue a pass/FAIL ) ;
772      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
773      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
774      Also modify printing of summary:
775       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
776       b) echo the list of tested variables in the individual summary.txt of
777          each experiment.
778    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
779      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
780      (but still depend on the tile decompostion of the domain).
781    o pkg/seaice: change a discretization detail to make the B-grid code
782      "more symmetric". This change is likely to remove all "ridges/leads" that
783      where quasi-aligned with the grid in B-grid solutions. It may also be
784      the solution to the stress coupling issues with the B-grid.
785    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
786      remove .cvsignore from input dir. (since testreport no longer run here).
787    o pkg/thsice:
788     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
789     - fix reshaping of sea-ice just after advection:
790       melt all the ice only if ice-volume is too small.
791     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
792       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
793     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
794    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
795      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
796    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
797      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
798      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
799      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
800      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
801      -> update output.txt
802    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
803     this affects truncation error: -> update output.txt of exp:
804      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
805      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
806    
807    checkpoint59f
808    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
809    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
810      a bounded range (in forward mode)
811    o pkg/ecco, ctrl, autodiff and mom_common:
812     internal parameter controls, completements of implementations
813    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
814    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
815      (not seem any difference in testing results).
816    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
817       at face corners.
818    o pkg/generic_advdiff:
819     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
820      loop range indices for computing vertical advection tendency
821      and do the calculation in the interior only (no overlap) ;
822      for now, only implemented for SOM advection (to save CPU time).
823     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
824    o exch2 adjoint
825      First set of changes:
826      - add exch2 hand-written adjoint templates
827      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
828        This will require cleanup in pkg/autodiff/*.F
829        (changed routines currently kept separate in verif. code/)
830      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
831        that used to hide exch2 or cubed-sphere specific code
832        (commented via 'cph-exch2')
833    o pkg/seaice
834      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
835    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
836       output of global_ocean.cs32x15.thsice .
837    
838    checkpoint59e
839    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
840      for B-grid vector (not yet tested) and C-grid vector (<- only used
841      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
842    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
843      (#ifdef ALLOW_SALT_PLUME)
844    o gather_2d/scatter_2d: removed halo regions
845    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
846      scheme and the corresponding test case (under front_relax dir). For now,
847      only available with Skew-flux form and not yet tested in realistic set-up.
848      adjoint: store directives updated, but gradient checks deteriorated,
849      so maybe GM/Redi adjoint is now broken.
850    o seaice adjoint
851      * add AREA, HEFF, HSNOW as control variable
852        (should not change lab_sea results)
853      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
854    o pkg/seaice:
855      * added computation of saltFlux in seaice_growth;
856        For time being, sea ice salinity is assumed constant
857        contribution of snow flooding to freshening of sea ice is neglected.
858        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
859        defaults to 0.0 in order to maintain backward compatibility.
860        Typical values for SEAICE_salinity are 4 to 10 g/kg.
861      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
862      * added SEAICE_availHeatFrac, which specifies fraction of surface level
863        heat content used to melt or grow ice
864      * commented out cap of HICE: it helps keep ice thinner
865      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
866      * applied OBCS T/S mask to HEFFM sea ice mask
867    
868    checkpoint59d
869    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
870     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
871     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
872    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
873     and change default value of parameter "GM_Small_Number";
874     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
875       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
876       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
877    o pkg/ecco: cost function when applying pkg/smooth to controls
878    o pkg/ctrl: add forcingPrecond run time parameter
879    o pkg/seaice:
880     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
881     - fix bug in metric terms of u-equation in LSR solver (implicit part),
882       changes verification/lab_sea
883     - rearrange implicit part of u-equation in LSR solver to make it easier to
884       read, understand, and debug. This causes changes at the truncation level.
885     - fix (serious) bug in the boundary conditions (sign error in the implicit
886       part) of the LSR solver. Changes all LSR results.
887     - fixed problem with HSNOW initialization to avoid thick snow when AREA
888       is initilized with small values - does not change lab_sea results.
889     - added HsnowFile initialization capability
890    o pkg/smooth: addition to model/src and pkg/ctrl so allow
891     initialization of pkg/smooth and application to control vector
892    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
893    o dependencies: pkg/profiles requires pkg/cal
894    o pkg/profiles:
895     - added option ALLOW_PROFILES_GENERICGRID
896         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
897         that interpolation information (grid points and coefficients) is provided
898         within the netcdf input files.
899         -> sample matlab scripts can be found in MITgcm_contrib/gael
900         that allow you to prepare netcdf input files.
901     - also modified: cleaner include statements, cleaner error print statements,
902       cleaner stops when error, and more tests of the netcdf input files consistency.
903    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
904    o pkg/seaice:
905     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
906       requires a new routine: seaice_diagnostics_fill.F
907     - make sure that seaice does not move if not forced (pressure replacement
908       method, Hibler and Ip, 1995), changes results
909     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
910     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
911       It is turned off by default (=-1.), because it changes the results.
912     - make it possible to read AREA from a file, too.
913    
914    checkpoint59c
915    o add S/R and diagnostics for oceanic mixed-layer depth
916    o move GMRedi call after all vertical mixing schemes (including KPP)
917    o pkg/thsice:
918     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
919      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
920    o pkg/obcs:
921     - bug fix for balance code
922    o pkg/seaice:
923      - allow values of SEAICE_elasticParm > 1
924      - add new parameter SEAICE_evpTauRelax as an alternative
925        to SEAICE_elasticParm
926      - make lsr boundary conditions free slip (by default), changes result
927      - add code for no slip boundary conditions for lsr
928      - set minimum of zeta to zero (and not 4e8) (changes results)
929      - add a cap on AREA after advecting AREA if seaice_growth is not called
930    o change calculation of Visbeck K:
931      - no longer depend on tapering scheme; instead, compute slope (limited
932        by GM_maxSlope). this is equivalent to what was comuted before with
933        clipping or linear tappering.
934      - fix vertical averaging (wrong by 1/2 level)
935      - leave the old version (but will not be maintained) within
936        #ifdef OLD_VISBECK_CALC / #endif
937      - update output of exp. ideal_2D_oce
938    o change error catch in calc_r_star to improve vectorization
939    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
940      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
941    o adjoint:
942      Re-organized adjoint checkpointing according to Matt Mazloff
943      (but with modifs/completions/cleanups)
944      Storing is now bundled into large arrays to optimized I/O
945      (and second step in cleanup of the_main_loop)
946    
947    checkpoint59b
948    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
949      - export/import (between ocean & coupler) fields needed for ocean DIC.
950    o pkg/seaice:
951      - get rid of three more exchanges seaice_calc_viscosities (required
952        different loop boundaries in seaice_lsr and seaice_ocean_stress)
953      - bug fix in seaice_ocean_stress (update of lab_sea required)
954      - reduce loop boundaries to necessary minimum also in seaice_evp
955      - go back to the old way of computing deltaC/Z as the adjoint likes that
956        better
957    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
958      passive tracer to an Age Tracer) + update output.txt
959    o pkg/exf:
960      - implement A-grid / C-grid selection for wind-stress input files.
961      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
962      for now, in exf_bulk_largeyeager04.F only :
963      - change implementation for case where windspeed + 2. components wind-stress
964        are read-in. AND use rhoConstFresh to convert evap.
965    o pkg/seaice:
966      - use correct EXCH_UV for wind-forcing (on A-grid).
967      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
968        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
969    o pkg/exf:
970      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
971      EXF_INTERPOLATION:
972      - merge global_with_exf/code version of exf_interp_read.F
973        to the main code ;
974      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
975        reading the file ; Important: This options needs to be defined to recover
976        previous code.
977        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
978      - no longer loose real*8 precision along the way when using exf_iprec=64.
979    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
980      - change discretisation of evp-solver in order to avoid another exchange
981        (changes lab_sea) and clean up a little
982      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
983        help the adjoint (this also changes the results slightly)
984      - add a few "_d 0" where they had been missing in seaice_evp.F
985      - cleaning up: remove unused seaice_calc_rhs.F
986    o pkg/exf: some cleaning-up:
987      - change various "constants" into runtime parameters
988      - cleaned-up Large&Yeager04 routine which should eventually
989        replace exf_bulkformulae.F (changed names of S/R and CPP)
990        and merged various ALLOW_ATM_WIND options
991     only used with thsice pkg (in thsice_get_exf.F):
992      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
993        which are used when useStabilityFct_overIce=TRUE (= the default)
994      - change default values of ice & snow emissivity and scale downward LW
995        by ice & snow emissivity.
996    o pkg/thsice:
997     fix few little problems, in thsice_calc_thickn.F:
998      - growth vertically (and not laterally) if iceFrac == iceMaskMax
999      - melt only laterally if hIce < hThinIce (as the comments say)
1000      and in thsice_extend.F:
1001      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1002      - start to form ice as soon as the minimum ice-volume is reachable.
1003     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1004      and cpl_aim+ocn
1005    o pkg/kpp
1006     - move computation of surface related input fields to KPP into a new
1007       subroutine kpp_forcing_surf.F
1008     - remove wrong (within bi,bj loops) EXCH calls.
1009     - little cleaning (add argument myThid in last position, cvs header ...)
1010     - for now, fix conservation problem by exchanging KPPviscAz (may not
1011       be the best fix)
1012    o pkg/seaice
1013     - check for inconsistent evp parameter/cpp-flag combination
1014     - remove leftover errIO flat for obsolete name list error handling
1015    o OpenAD
1016     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1017    
1018    checkpoint59a
1019    o pkg/seaice: some parameter clarifications and a little bit of clean up
1020    o pkg/thsice: rename run-time parameters:
1021       himin       -> hIceMin
1022       himin0      -> hThinIce
1023       hihig       -> hThickIce
1024       i0          -> i0swFrac
1025       transCoef   -> bMeltCoef
1026       frac_energy -> fracMelting
1027      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1028       with default values (for now) that do not change the results.
1029      remove old version of thsice vars advection in pkg/seaice.
1030    o in FFIELDS.h:
1031      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1032      - make pLoad & sIceLoad always available (but still only used if
1033         ATMOSPHERIC_LOADING is #define).
1034    o pkg/kpp: replaced _KPP_RL with _RL
1035    o bug fixes for vertical diffusivity computations when both KPP and
1036        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1037        are no longer updating the vertical diffusivity array
1038        (passed as argument) but are (re-) setting those arrays.
1039    o pkg/seaice: fix bug in evp solver, while doing that
1040      - change (improve?) discretization of stress computations for both
1041        cgrid-lsr and evp solver
1042      - add a new routine to compute strain rates
1043      - the above changes lab_sea results
1044      - add no slip conditions for evp solver (off by default), lsr-version
1045        may follow
1046      - fix exchange for shear at Z-points (does not change lab_sea)
1047      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1048        (to force the user to pick a time step since there is not "safe" way
1049        of choosing it)
1050      - add principal stress diagnostics
1051      - rearrange fields for evp a little to avoid having to call a: too many
1052        exchanges and b: exchanges for stress trensor components which we do
1053        not have.
1054      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1055        of evp, complete rewrite for lsr case (latter is does not yet work
1056        in all cases)
1057    o pkg/kpp: add code to have mixing in shelf ice caverns
1058      - add myThid to all kpp routines (long overdue)
1059    
1060    checkpoint59
1061    o pkg/exf:
1062      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1063        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1064      - move exf header files from lower_case.h to UPPER_CASE.h ;
1065        add missing cvs Header & Name
1066      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1067      - add namelist param. selectStressGridPosition, exf_monFreq
1068      - retire many _CLIM routines, and remove data.exf_clim
1069        + params moved to data.exf
1070        + climsst, climsss now handled by exf_set_gen, i.e.
1071          climss?period=0 refers to constant field,
1072          climss?period=-12 to monthly forcing
1073      - split up namelists in data.exf
1074    o pkg/seaice:
1075      - remove seaice_exch and seaice_exch_uv
1076      - remove superfluous exchange of theta
1077      - add myThid to seaice_budget_ocean/ice
1078      - add new interface for atmospheric wind forcing (C-grid only)
1079        + new routine
1080        + two new field (taux, tauy for stress over ice)
1081        + removed one global field (DAIRN) for C-grid case only
1082    o pkg/thsise
1083      - 2nd set of modifs for thsice adjoint in conjunction with exf
1084    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1085    
1086    checkpoint58y_post
1087    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1088      vertical diffusivity, similar to that in MOM4; turned on using
1089      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1090      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1091    o Added capability for 3D specification of background vertical diffusion
1092      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1093      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1094      "data" file that contains the 3D vertical diffusivity coefficients.
1095    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1096      - add code within pkg thsice to advect & diffuse sea-ice fields
1097      similar to (and will replace) what has been added in  seaice_advdiff.F,
1098      but: - conserving Mass, Heat & Salt.
1099           - better when using non-linear advection scheme (not yet fully tested)
1100           - can also be used in atmospheric set-up (for now, only the diffusion).
1101    
1102    checkpoint58x_post
1103    o IO option for global-file compact format:
1104      - add options when generating topology (utils/exch2/matlab-topology-generator)
1105      - add I/O capability (pkg/mdsio).
1106      - adapt utils/matlab/rdmds.m to read this format.
1107      for now long-line format not yet supported by pkg/mdsio (& exch2).
1108    o shelfice: add a few diagnostics
1109    
1110    checkpoint58w_post
1111    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1112      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1113      (and replace horiVertRatio in NH code).
1114      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1115                         and tutorial_plume_on_slope (sensitive to truncation)
1116    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1117      directly to drive seaice model (C-grid only)
1118    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1119     - reintroduce computation of wind from stress,
1120     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1121       mass points to avoid tau = 0
1122     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1123    o rdmnc.m: make it work with "global" files created with gluemnc
1124    o rdmnc.m : some improvements in dealing with singleton dimension
1125      (tested on all testreport mnc output files).
1126    o genmake2: disable pkg/profiles if netcdf test fails.
1127    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1128    o move call to cal_readparms up to make calendar parameters/variable available
1129      to all packages
1130    
1131    checkpoint58v_post
1132    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1133      useDynP_inEos_Zc tested.
1134    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1135    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1136      and portions thereof.  See read_cs.txt for description and examples.
1137    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1138      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1139      following the great-circle arc between those 2 points.
1140    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1141      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1142    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1143     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1144     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1145     - still needs work (not working with some options ; efficiency to improve)
1146       and serious testing.
1147     - use this scheme for temperature & salinity in 2 advection test exp.:
1148       advect_xy & advect_xz, respectively.
1149    
1150    checkpoint58u_post
1151    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1152    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1153    o testreport: add option "-skipdir" to skip some test.
1154    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1155      momentum calculation.
1156    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1157    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1158      remove checkpoint.F and the_correction_step.F (no longer used);
1159      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1160    o add option (linFSConserveTr) to correct for tracer source/sink due to
1161      Linear Free surface
1162    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1163    o pkg/thsice: fix reading mnc-pickups
1164    
1165    checkpoint58t_post
1166    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1167    o pkg/mdsio:
1168     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1169       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1170       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1171     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1172     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1173       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1174     - new S/R (to replace MDSWRITEMETA), which allows to write more
1175       informations (variable names, time ...) to meta files.
1176     - modify rdmds.m to give back the meta file content.
1177    o pkg/diagnostics: change vertical interpolation to be safer, and more
1178       flexible (define p-levels to interpolate to in data.diagnostics);
1179      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1180       diagnostic pointer.
1181    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1182    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1183    o fix multi-category seaice:
1184     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1185       SEAICE_MULTICATEGORY
1186     - fix short wave heat flux
1187    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1188       and allow to use EVP solver. Change forward lab_sea: test both EVP
1189       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1190    o Initial check-in of lab_sea adjoint
1191      (very similar to natl_box_adjoint/code_seaice)
1192      * used C-grid and EVP solver
1193      * used KPP, GM/Redi
1194      * uses inAdExact=.TRUE.
1195      * gradient checks fail for both ADM and TLM
1196        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1197        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1198        issue is related to forward mismatch between g77 an ifort
1199    o pkg/seaice: overhaul of thermodynamics
1200     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1201     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1202     - move a few global fields out of SEAICE.h into seaice_growth.F and
1203       make them 2D (FICE/QNETO/ ...)
1204     - remove FO (it is the same as QNETO)
1205     - introduce a few local fields to avoid modifying external fields such
1206       as atemp, etc.
1207    
1208    checkpoint58s_post
1209    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1210      changed exf_set_gen.F so that
1211        genperiod=0 means input file is one time-constant field and
1212        genperiod=-12 means input file contains 12 monthly means
1213    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1214      this affects truncation error ; generate new output file for exp. which
1215      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1216        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1217        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1218        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1219        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1220        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1221    o start implementation of deep-atmosphere and anelastic formulation
1222    o verification: remove 2nd copy of input files and use script "prepare_run"
1223      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1224    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1225    o profiles: fix for multithreaded case
1226    
1227    o diagnostics: rename few diags:
1228      s/'PRESSURE'/'RCENTER '/g
1229      s/'TICE    '/'oceFreez'/g
1230      s/'TAUX    '/'oceTAUX '/g
1231      s/'TAUY    '/'oceTAUY '/g
1232      s/'SWFLUX  '/'oceQsw  '/g
1233      s/DIFx/DFxE/g
1234      s/DIFy/DFyE/g
1235      and add few ocean-forcing diagnostics:
1236      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1237    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1238      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1239      as actual snow thickness.  It now refers everywhere to effective snow
1240      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1241    
1242    checkpoint58r_post
1243    o modifications to pkg/seaice/growth.F, which change results of
1244      lab_sea experiment: fixes pertain to melting snow over open water, to
1245      masking EVAP under sea ice, and to using the correct AREA variable for
1246      computations of EVAP, PRECIP, HSNOW, and GHEFF
1247    o add ability to read bathy, salt, and theta using MNC (off by def)
1248    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1249      both are turned off by default and do no change any results
1250    o seaice advection with pkg/thsice: a step toward the use of non-linear
1251      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1252    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1253      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1254      in natl_box (affects results @ truncation level: update output.txt)
1255    o multi-threading and IO:
1256      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1257      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1258        (needed to work with SingleCpuIO): tested in all verif. exp.
1259    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1260      affects the results (but none of the verification test uses this scheme).
1261    o Adding some pkg/diagnostics capability to pkg/seaice
1262      (will certainly be subject to changes)
1263    o ctrl: adding new control variables:
1264      lwflux, lwdown, evap, snowprecip, apressure, runoff
1265    
1266    checkpoint58q_post
1267    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1268      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1269      high_res_cube configuration by 4% on Columbia.
1270    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1271      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1272      dynamical allocation (seems to work in multi-threaded).
1273    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1274      single CPU io) so that TAF does not have to see EESUPPORT.h
1275    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1276    
1277    checkpoint58p_post
1278    o obcs: stop if obcs is used with useCDscheme = .true.
1279    o shelfice:
1280     - fix a sign error so that no slip at shelfice interface works
1281     - remove stop for combination non-hydrostatic code and shelfice. That does
1282       not mean, that the results are correct, but at least they are numerically
1283       stable
1284    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1285    o added adjoint exch routined for all exch*3d* routines
1286      and updated flow directives
1287    
1288    checkpoint58o_post
1289    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1290      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1291    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1292      and clean-up reading/writing of pickup files.
1293    o fix local version of read/write pickup (NH part) in rotating_tank/code
1294    o simplify EXCH interface:
1295     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1296     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1297    o added the regrid package
1298    o shelfice:
1299     - add a simple boundary layer scheme to reduce noise
1300     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1301    
1302    checkpoint58n_post
1303    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1304       local variable (not in common block).
1305    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1306      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1307      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1308        to work with SingleCpuIO.
1309    o add "_d 0" to real constant of pkg/cfc subroutines ;
1310       update exp. cfc_exemple & tutorial_cfc_offline output files.
1311    o multi-threading and IO:
1312      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1313        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1314      - barrier before and after reading.
1315      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1316      - avoid using MDS_WRITELOCAL for LAND pkg output.
1317      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1318        common-block variables ; Allows multi-threading with master-thread IO.
1319    o change default MAX_NO_THREADS from 32 to 4 ;
1320      and stop cleanly when MAX_NO_THREADS is too small.
1321    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1322    
1323    checkpoint58m_post
1324    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1325       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1326    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1327       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1328       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1329    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1330        add MITgcm_tutorials (= code + all the tutorials)
1331    o ecco, option to compute cost for total ssh (mean+anom)
1332    o consistent with addition of ptracer and ssh in pkg/profiles
1333    o profiles: adding ptracer and ssh
1334    o testreport: change multi-test output-file name
1335      (from output.txt.{name} to output.{name}.txt)
1336    o profiles: now ok for mutli-tiles case
1337    o seaice: add 4 parameters for different advection schemes for area,
1338      (effective) seaice thickness, enthalphy, and snow height. Their default
1339      is the standard parameter SEAICEadvScheme
1340    o calc_gw:
1341     - add cosFacU in zonal viscous flux (harmonic.visc.).
1342     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1343       of tutorial_plume_on_slope.
1344    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1345    o calc_gw: true flux-form, account for horizontal grid spacing.
1346      update rotating_tank results, but not plume_on_slope (affected at
1347      truncation level, 11 digits).
1348    
1349    checkpoint58l_post
1350    o calc_gw:
1351     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1352     - remove side-drag for now (need to fix it); update plume_on_slope results.
1353     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1354    o commit code to make SST/SSS weights spatially variable
1355      (based on either variable in-situ or variable initial T/S weights)
1356    o pkg/ecco:
1357      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1358        now based on horizontally varying weights wthetaLev, wsaltLev
1359      * cost_averagesflags now returns year indices in addition to day, month
1360      * sflux balance is performed on annual basis
1361        (sflxumm, sfluxmm2, bal_sfluxmm)
1362      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1363        including separate counting and multipliers
1364    o pkg/rbcs
1365      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1366    
1367    checkpoint58k_post
1368    o testreport:
1369     - always build in dir. "build" (if not there, mkdir build instead of building
1370       & running in input)
1371     - run in dir run (if it exists), in build otherwise.
1372     - call prepare_run (if input/prepare_run exists)
1373     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1374    o pkg/exf modifications to interpolation and rotation routines for more
1375       reasonable treatment of North Pole singularity: for tracers North Pole
1376       value is set to northernmost zonal-mean value, for zonal velocity it is
1377       set to zero, and for meridional velocity it is set to northernmost value.
1378    o pkg/exf/exf_check_range.F
1379     - add tile index to diagnostics and move stop statement to the very
1380       end of the routine.
1381    o pkg/diagnostics: (diagnostics_main_init.F)
1382      define title of isomorphic variables according to the current config.
1383    o pkg/thsice with pkg/seaice dynamics:
1384    - fix domain of computation (interior only, required for exf) and do exchanges
1385    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1386    o towards a standard way of dealing with multi-threading in MONITOR
1387      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1388    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1389       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1390    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1391    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1392    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1393       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1394    o tracer advection:
1395     - clean-up and simplify calc_common_factors.F
1396     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1397       advection subroutine (but still not used within DST advection S/R)
1398    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1399    
1400    checkpoint58j_post
1401    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1402      from file (collects calls previously in FORWARD_STEP)
1403    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1404    o adjoint store dir. adjusted accordingly
1405    o genmake2
1406      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1407    
1408    checkpoint58i_post
1409    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1410      on wind stress (SEAICEstressFactor defaults to 1.)
1411    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1412      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1413    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1414      on CS-grid: no longer loosing mass.
1415    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1416    o pkg/ggl90: fix sloppy output and fix a bug
1417    o pkg/seaice: added SEAICEuseEVPpickup parameter
1418      - Set to false in order to start EVP solver with
1419        non-EVP pickup files when using SEAICEuseEVP
1420      - fix sign error in diffusion in seaice_calc_rhs
1421    
1422    checkpoint58h_post
1423    * Modifications for bottom topography control
1424      o replace hFacC by _hFacC at various places
1425      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1426      o add non-self-adjoint cg2d_nsa
1427      o update autodiff support routines
1428      o re-initialise hfac after ctrl_depth_ini
1429      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1430    * Adding verification for 5x5 box (4-layer) bottom topography control
1431    
1432    checkpoint58g_post
1433    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1434       used for mean seasonal cycle, mean diurnal cycle); add an example
1435       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1436    o pkg/ggl90:
1437      - add parameter (minimum surface kinetic energy)
1438      - fix bug (avoiding division by zero)
1439    o couple pkg/thsice to pkg/seaice:
1440      - modify advection in seaice to accomodate new scalar fields to be advected
1441      - only muliDimAdection scheme work with seaice/thsice
1442      - mapping of thsice-variables to seaice-variables, back and forth
1443      - does not break the verification experiments, but does not give the
1444        desired results either
1445    o pkg/seaice
1446      - make (default) second order advection a bit less confusing?
1447    
1448    checkpoint58f_post
1449    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1450      to pkg/seaice):
1451      - new routines thsice_map_exf and thsice_get_exf provide the interface
1452      - add an additional formal parameter to thsice_solve4temp
1453    o pkg/exf:
1454      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1455      - correct Stefan-Boltzmann constant
1456      - new parameter for longwave surface emittance
1457      - separate some stuff from exf_bulkformulae into new routines  
1458        exf_radiation, exf_wind
1459      - add new parameters and constants: longwave emissivity for ocean, ice
1460        and snow, evaporation parameters over ice
1461      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1462        either wind from stress or stress from wind
1463    o pkg/thSIce:
1464    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1465    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1466       and THSICE_CALC_THICKN
1467    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1468    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1469      to make debugging easier.
1470    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1471    o pkg/bulk_force:
1472      - clean-up comments and parameters ;
1473      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1474    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1475      generate new output for test-experiment: aim.5l_cs.thSI
1476    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1477      testreport accordingly
1478    
1479    checkpoint58e_post
1480    o SEAICE_CGRID adjoint done
1481    o R_STAR adjoint implemented.
1482      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1483      * need to sort out init. of h0facc, etc.
1484    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1485      to be able to use it in pure forward.
1486    
1487    checkpoint58d_post
1488    o upgrade simple test-experiment to tutorial example:
1489     step.1: duplicate the experiment and (step.2) will remove the old copy.
1490      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1491      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1492      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1493      tutorial_global_oce_biogeo    <- copy of dic_example
1494      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1495      tutorial_plume_on_slope       <- copy of plume_on_slope
1496      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1497      tutorial_global_oce_optim     <- empty for now (David ?)
1498      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1499     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1500    o correct a sign problem in cost_scat.F
1501    o obcs and ptracers: fix boundary conditions for advections schemes
1502      with larger stencil
1503    o thsice adjoint: start
1504    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1505      completeness
1506    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1507      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1508    o ptracers adjoint:
1509      * avoid extensive recomputatations
1510      * fix missing re-init. of gptr (missed by TAF)
1511    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1512      me to turn off the excessive output to STDOUT that this package produces
1513    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1514      and add those terms in Vector-Invariant formulation.
1515    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1516      if the control period (xx_hfluxperiod etc) is 0
1517    o in profiles pkg, clean routines and fix details
1518    o in ecco pkg, reading ssh data:
1519      fix problem in case the model does not start at iter0=0
1520    o fix mnc-pickup/restart for ptracers
1521    o new package prifiles:
1522      code to compute profile-based cost by Gael Forget
1523      (modifs in ecco, ctrl, autodiff)
1524    o Benign bug fix in initialization (spotted by M. Mazloff) of
1525      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1526    
1527    checkpoint58c_post
1528    o adjoint: finish NLFS adjoint and provide reference output in
1529      verification/global_ocean.90x40x15/results_ad_nlfs
1530    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1531      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1532      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1533      with SEAICE_CGRID defined.
1534    o move calendarDumps from "data" to "data.cal" and clean-up the code
1535      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1536    o add useEXF & useCAL flags (for now, set in hard-coded way)
1537    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1538      (were missing in NH mode, and wrong in quasihydrostatic mode).
1539      waiting for Chris updated version of calc_gw to add those CALLs.
1540    o fix bug in quasihydrostatic S/R ;
1541      add a test for this option: global_ocean.90x40x15.qshyd
1542    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1543      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1544    o add on/off flag useOffLine for package OFFLINE
1545    o seaice:
1546      - modify advection so that it works also on the C-grid
1547      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1548        problem in multi-tile runs with C-grid
1549      - add flags for clipping ice velocities and/or masking solver forcing
1550      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1551        C-grid solver
1552      - added a few comments to seaice_diffusion.F
1553      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1554        are now exclusive)
1555      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1556        required re-ordering the code a little:
1557       + make DAIRN global variable (defined in SEAICE)
1558       + move computation of the viscosities eta and zeta into a new separate
1559         routine (because I need to recompute them in seaice_ocean_stress.F)
1560    
1561    checkpoint58b_post
1562    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1563      update output.txt of exp. aim.5l_cs.thSI
1564    o various mnc cleanups and improvements:
1565      + shrink lookup tables by factor of ~4
1566      + better error reporting when running out of lookup space
1567      + able to handle longer path/file names (up to 500 chars)
1568    o adjoint:
1569      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1570      - TBD: "hidden" mom_vecinv recomp. in dynamics
1571    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1572     (allow to differentiate between forcing components using new integer flags:
1573      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1574     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1575    o ecco
1576      - enable trend removal from SSH anomaly obs.
1577    o adjoint
1578      - a fix for PmEpR when #undef EXACT_CONSERV
1579      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1580      - try to fix "hidden" recomp. in forward_step for NLFS
1581        (NLFS seems broken sometimes after I checked it in)
1582    o seaice:
1583     - add c-grid version of the dynamic solver:
1584       + three new routines that are the c-grid substitute lsr, dynsolver
1585         and ostres
1586       + put a few fields that were local to dynsolver into global common
1587         blocks, so that I can move the computation of stresses etc into
1588         seaice_lsr (saves coding but may break the adjoint).
1589     - replace more hardwired parameters by runtime parameters
1590     - add ice masks that mask the rhs of the implicit solvers where there
1591       is no ice (commented out in seaice_dynsolver, because i am not sure
1592       if this works properly), eventually this should replace the clipping
1593       of ice velocities in seaice_dynsolver to +/-40cm/s.
1594    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1595      include it only where its needed
1596    o move balancing of fluxes before the call of external_forcing_surf
1597    o seaice:
1598      - correct units of turning angles (now they are really in degrees)
1599      - move computation of GWATX/Y out of main routine into dynsolver
1600      - initialize GWATX/Y in seaice_init
1601    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1602      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1603    o seaice: add runtime flags for turning angles (default to zero)
1604    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1605      and trend from exf forcing and ctrl control adjustments
1606    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1607      (since checkpoint57x_post)
1608    o change the default rotation period to 86164.s = the Earth rotation
1609    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1610      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1611    o seaice advection: add code for choosing between the default (2nd order
1612      central differences) and multiDim advection schemes provided by
1613      pkg/generic_advdiff
1614    o seaice:
1615      - removed all references to SEAICE_GRID.h fields from
1616        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1617        (cubed-sphere configuration will change a little)
1618      - grid computations in seaice_init are obsolete now.
1619      - cleaned up code a little so that is easier to read (hopefully).
1620      - added new (better?) discretizations of default advection and diffusion
1621        (turn on with SEAICEuseFluxForm)
1622      - replace 1 in 3d global fields by kSurface in growth.F
1623      
1624    checkpoint58a_post
1625    o seaice:
1626      - bug fix in advect.F
1627    o shelfice:
1628      - separate shelfice load anomaly from pload (breaks with time
1629        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1630        Its default is 0., but it may be computed more cleverly from (unknown)
1631        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1632        done offline. A good approximation of the pressure load anomaly is
1633        necessary to avoid large initial adjustment processes underneath
1634        deep-reaching shelfice.
1635      - small fix in ISOMIP shelfice_thermodynamics
1636      - add more sophisticated thermodynamics of Hellmer (1989), this is
1637        now the default
1638      - give a few constants more intuitive names
1639    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1640      if bulk formulae are used in long integration (especially EmPmR). Turn
1641      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1642      if balancePrintMean, the imbalance that is substracted is printed to
1643      STDOUT.
1644    o fix bug (typo) in obcs_apply_eta.F
1645    o add a new package shelfice which enables us to model the circulation
1646      underneath shelf-ice with draughts of hundreds of meters.
1647     - works
1648     - to do: + include improved thermodynamics
1649              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1650                instead of new field kTopC
1651              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1652                instead of new field R_shelfIce and new code in ini_depth.F
1653                and ini_mask_etc.F?
1654              + adjust vertical mixing schemes?
1655    o seaice pkg:
1656     - add a cpp-flag to include a simple formula for a salinity dependent
1657       freezing point of sea water at the surface
1658     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1659       meridional stresses are now different (and hopefully correct)
1660    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1661       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1662       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1663    o pkg/diagnostics: add options and parameters for regional-statistics
1664       diagnostics ; define regions by reading a region-mask from a file
1665       (might add other options later)
1666    o pkg/bulk_force:
1667     - add option and parameters to use AIM surface-flux formulae.
1668     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1669       others forcing fields (defined in PARM05, parameter file "data") are loaded
1670       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1671     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1672     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1673     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1674       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1675     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1676    
1677    checkpoint58
1678    o add "--embed-source" option to genmake2 which, when the supporting
1679      tools can be compiled (as determined by genmake2) will turn on the
1680      embed_files package which then embeds the entire MITgcm source code
1681      (*.[fFhc] + Makefile) used for the build within the executable
1682      - requested by CNH but off by default
1683      - adds a paltry <9MB to the mitgcmuv executable in most cases
1684      - only writes the output when useEMBEDSRC in eedata is true
1685    o clean up 3-dim. relaxation codes:
1686      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1687      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1688      * Thanks to Tom Haine for testing!
1689    
1690    checkpoint57z_post
1691    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1692      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1693    o fix the pickup behavior for obcs in combination with ptracers
1694    o fix a bug in ptracers_external_fields_load
1695    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1696      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1697    o transfered surface NH pressure to eta field (if exactConserv).
1698    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1699         and update lab_sea output.txt file.
1700    o completing 3-dim. relaxation code: additional term
1701         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1702      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1703      * At compile time, in "EXF_OPTIONS.h" set
1704          #define  ALLOW_CLIMTEMP_RELAXATION
1705          #define  ALLOW_CLIMSALT_RELAXATION
1706      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1707          tauThetaClimRelax3Dim = 15552000.0,
1708          tauSaltClimRelax3Dim  = 15552000.0,
1709      * 3 cases:
1710          1) Use a constant-in-time 3-dim. field
1711          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1712          3) Real-time relax. to time-evolving prescribed field
1713    o Adding Laplacian-type smoothness constraint on
1714      initial and boundary (forcing) controls (ic, bc)
1715      * enable at compile-time via
1716        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1717      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1718      * Absolute scale somewhat unclear so far
1719      * no area weighting was included since no other cost term does so far
1720    
1721    checkpoint57y_post
1722    First step for a NLFS adjoint
1723    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1724    o new init. routines for calc_r_star, calc_surf_dr
1725    o still need to deal with ini_masks_etc
1726    o testreport seemed happy
1727    checkpoint57y_pre
1728    
1729    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1730    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1731    o add new offset feature to offline pkg (plus minor cleanup)
1732    o cfc fixes for final year of integration
1733    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1734      be in GCHEM_OPTIONS).
1735    
1736    checkpoint57x_post
1737    o fix testreport Pb in multiple test experiment.
1738    o cleanup our namelist syntax in verification:
1739      - make it more F95 standards compliant (some work still needed)
1740      - allows the vast majority of our tests to work with gfortran
1741    o Non-Hydrostatic:
1742     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1743     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1744    o Allow to apply AB on T,S rather than on AB(gT,gS):
1745     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1746     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1747       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1748     - need a "clever" read_pickup to restart from the other AB formulation
1749    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1750    o remove some unused variables (reduces number of compiler warnings)
1751    o adjoint
1752      * Disable useVariableViscosity for adjoint for time being
1753        (there are a number of extensive recomputations)
1754      * Initialize certain variables needed for adjoint
1755    
1756    checkpoint57w_post
1757    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1758                 fix the singleCpuIO RS version of MDSWRITEFIELD
1759       and add a WARNING if using globalFiles=T with multi-processors.
1760    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1761      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1762    o tracer advection scheme:
1763      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1764       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1765       was not very convenient).
1766      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1767       (further tests needed for the implicit DST & Flux-Limiter schemes).
1768    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1769      and sRef for convenience, handy, when you want to initialize
1770      ptracers in a large domain with a constant non-zero value. Also,
1771      untangle ptracers_init.F a little.
1772    
1773    checkpoint57v_post
1774    o change dome exp. to use variable viscosity in side-drag terms.
1775    o remove all the files from the cfc_offline test since they are now
1776      incorporated into tutorial_cfc_offline which has been producing
1777      identical results for a few days of testing
1778    o add new parameter: sideDragFactor to enable half-slip-side BC
1779      and change side-drag S/R to use viscosity from mom_calc_visc
1780      (can switch back by setting sideDragFactor=0.); affects results at
1781      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1782       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1783    o vorticity & strain are now computed without masking, to account for
1784      no-slip-side BC in variable viscosity calculation ; mask is applied
1785      anyway later on, before computing advection/coriolis terms.
1786    o modify exp4 to test new obcs support for reading from external files
1787      and for passive tracers
1788    o fix behavior of ptracers_monitor when monitor output is written to a
1789      netcdf-file; still not independent of monitor.F (writes in the same
1790      file).
1791    o change default value of tRef (put a uniform, meaningful value for ocean
1792      & atmos) and initialize sRef (was missing, as Martin mentioned).
1793    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1794      to be proportional to enstrophy dissipation length.  Thus,
1795       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1796      This is now consistent with Smagorinsky and with the manual.
1797    
1798    checkpoint57u_post
1799    o OBCS and PTRACERS: add open boundary support for passive tracers
1800      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1801        OB-values from file; this is not different from the way theta and salinity
1802        are treated
1803      - however, Orlanski-radiation conditions are not supported, and the model
1804        will stop if you use pTracers and Orlanski at the same time.
1805      - beefed up the rountine obcs_external_fields_load: now only those open
1806        boundary values are overwritten with values from files for which there
1807        are really files, otherwise the OB-fields remain untouched. This makes
1808        it possible to use different OBs at different ends of the domain (as
1809        with EXF)
1810    o reduce number of exch calls in shap_filt (s2).
1811    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1812      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1813    
1814    checkpoint57t_post
1815    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1816    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1817      same truncation, independent of the face number: affects affects several
1818      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1819    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1820      note that biharmonic viscosity + no-slip was not tested in any experiment.
1821    o fix bug in non-linear free-surf side-drag ; generate new output for
1822      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1823    o make mnc honor the writeBinaryPrec flag for most kinds of output
1824    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1825    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1826      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1827    o add brackets in multi-terms sum to get same truncation, independent of
1828      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1829      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1830    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1831      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1832      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1833      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1834      Suggested values of viscosity parameters found in mom_calc_visc.
1835      Many new viscosity diagnostics available.
1836    
1837    checkpoint57s_post
1838    o Add clearing-house for viscosity calculations, mom_calc_visc and
1839      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1840      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1841      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1842      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1843      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1844      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1845      ViscAhStrain and viscAhTension are now retired.
1846    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1847    o In response to JMC's bug report, genmake2 now ignores any soft-links
1848      that it finds in the *current* directory when searching for files.
1849      Soft-links found in any other source directories will still work as
1850      they did before.
1851    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1852      a C routine to unlimit the stack size
1853    o mnc-ify pkg/aim snapshot vars
1854    o mnc-ify pkg/land as requested by Daniel
1855    o various changes to mnc including:
1856      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1857      - output can now be grouped so that all files within a group
1858          change the ITER portion of their names in lock-step together
1859      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1860          and works with both EXCH1 and EXCH2 (but needs more testing)
1861      - writing works for all verification test cases w/ g77 on Linux
1862    
1863    checkpoint57r_post
1864    o make MNC variable initialization happen earlier
1865    o add diagnostics for (almost) each term of the momentum Eq.
1866    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1867    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1868    o remove MINIMAL_TAVE_OUTPUT option ;
1869      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1870    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1871      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1872    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1873    o add time-dependent SST, SSS control
1874    o cost terms in ecco/ modularized (new cost_generic.F)
1875    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1876    o new infrastructure for seaice model vs. obs misfits in seaice/
1877      * driver from the_main_loop.F is seaice_cost_driver.F
1878      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1879      * gradient check in Exp. 6a of natl_box_adjoint/
1880    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1881      (see README file)
1882    
1883    checkpoint57q_post
1884    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1885    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1886      - bug was reported by Jean-Michel and Ian Fenty
1887    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1888      update exp. cpl_aim+ocn output.
1889    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1890      Needed for high-res. runs with large global files
1891      to be able to limit tapelev size
1892    o Changed some tests for adjoint:
1893      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1894      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1895      * global_ocean.90x40x15/ back to default 3-level checkpointing
1896    o Modifications to enable scripted COMMON to MODULE conversion
1897      * verification/OpenAD/code/ has necessary scripts and description;
1898      * converts, compiles and runs successfully;
1899    
1900    checkpoint57p_post
1901    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1902    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1903      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1904    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1905    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1906      (was already the case for dissipation with mom_vecinv,
1907       and also the case for grad.PhiHyd when staggered-timeStep)
1908      This will allow to put dissipation out-off the AB time-stepping.
1909     Unfortunately, affects truncation error. Update output of exp. that "fails"
1910      (cg2d matching number) and leave the others for later: front_relax(10),
1911      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1912      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1913    
1914    checkpoint57o_post
1915    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1916      (2) its ready to be documented during the 20050801 DocFest
1917    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1918      for ideal_2D_oce and lab_sea on linux_ia32_g77
1919    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1920      in global1x1_tot/code_seaice_adj to access indices 32, 33
1921      (worth another tag)
1922    
1923    checkpoint57n_post
1924    o adding precip control xx_precip 32
1925    o adding swflux control xx_swflux 33
1926    o Replacing 10 forcing penalty cost routines by 1 generic.
1927    o Implementing partitioning in time-mean and variable adjustment
1928      for atmos. state.
1929    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1930    o in natl_box_adjoint:
1931      * updated exp 1 to 10
1932        (but does not have time-mean vs. variable split results yet)
1933    o updated global1x1/*_seaice_adj/
1934      to incorporate latest changes
1935    o enable useSingleCpuIO for mdsio vector routines
1936      (applies in particular to tapelev I/O)
1937    o removed inefficient K-loop in all active_file*control*.F
1938    
1939    checkpoint57m_post
1940    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1941      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1942    o pkg/exch2: filling of face-corner halo regions is optional
1943      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1944    
1945    checkpoint57l_post
1946     tag before updating tutorials (pre-release-2)
1947    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1948       for output and interpolation of input fields onto model grid)
1949    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1950       Affects results of exp. rotating_tank ; update output.txt.
1951    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1952          and taking the square quantity and/or using a fraction-weight field.
1953    o fix aim_diagnostics_init.F mate numbers.
1954    o add mnc output capability to diagnostics/diagstat and update
1955      our cvsignore files for the ACSII output generated
1956    
1957    checkpoint57k_post
1958    o lab_sea now uses diagnostics package and provides a suite of
1959      new EXF diagnostics output.
1960    
1961    checkpoint57j_post
1962    o exf
1963      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1964        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1965        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1966      * extended diagnostics output
1967        - now includes all EXF variables
1968        - hs, hl moved to common block
1969        - separate S/R for diagnostics, called after ctrl vector is added
1970        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1971        - EXFqnet contains true Qnet (i.e. includes qsw)
1972      * updated verif. lab_sea, global_with_exf
1973      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1974        to ensure that diagnostics sees a true EXFqnet
1975    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1976    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1977      several times with different frequencies.
1978    o mnc-ify the thsice package as requested by Daniel Enderton
1979      - the monitor--MNC output needs work
1980      - many attributes need to be added (most are currently blank)
1981    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1982      - many attributes need to be added (most are currently blank)
1983    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1984    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1985    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1986      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1987         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1988    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1989     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1990    
1991    checkpoint57i_post
1992    o Diagnostics package was changed: diagnostic allocation is now deactivated
1993      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1994    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1995      add 1rst Order upwind vertical Shear.
1996    o add a quick fix for A/B checkpointing in OFFLINE mode
1997    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1998      end-run around the C/Fortran linking horror in eesup/src/timers.F
1999    o added pkg/runclock: allows user to terminate run based on wall clock
2000    o added non-hydrostatic scaling parameter: nh_am2
2001    o pkg/my82: futile attempt to make results compiler-independent by adding
2002      some "_d 0", etc. no effect.
2003    o for mnc output, fill the 'T' coordinate var with myTime and create a
2004      separate 'iter' variable for iteration count
2005    o pkg/diagnostics:
2006      add new capability: output of Global/Regional & per-level statistics ;
2007      tested against monitor output (including land & thSIce) on various exp.
2008    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2009    
2010    checkpoint57h_done
2011      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2012      data.diagnostics, data.gchem, data.ptracers) is done.
2013    
2014    o pkg/diagnostics: prepare for Global/Regional statistics.
2015      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2016    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2017      and rename it: DIFFERENT_MULTIPLE
2018    
2019    checkpoint57h_post
2020    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2021    o pkg/diagnostics: change output frequency, now in seconds (instead
2022      of Nb of iterations). This requires to change data.diagnostics.
2023    checkpoint57h_pre
2024    
2025    o in mnc, let the user create the output dir if both mnc_outdir_date
2026      and mnc_outdir_num are false
2027    o add fflags() to pkg/diagnostics which allows one to specify, on a
2028      per-file basis, the file precision [default behavior is unchanged]
2029    o added diagnostics to pkg/kpp, including computation of mixed layer
2030      depth based on a temperature/density criterion
2031    o updated verification/natl_box to test the new pkg/kpp diagnostics
2032    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2033    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2034    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2035      not mnc -- this mistake was found by JMC and is now corrected
2036    
2037    checkpoint57g_post
2038    o add Adams-Bashforth 3rd Order time stepping:
2039      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2040      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2041    checkpoint57g_pre
2042    
2043    o make lambda[Theta,Salt]ClimRelax spatially varying
2044      (default remains spatially uniform constant based on tau)
2045    o added new control variables
2046      * init. uVel, vVel, etanN
2047      * lambda[Theta,Salt]ClimRelax
2048    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2049      (suggested by G. Forget)
2050    
2051    checkpoint57f_post
2052    o add parameter "baseTime" = model base time = time at iteration zero
2053      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2054      account for baseTime shift
2055    o move Coriolis arrays from PARAMS.h to GRID.h
2056    checkpoint57f_pre
2057    
2058    o mnc-ifying the seaice package
2059    o introduced an alternative length scale calculation for use in the limiting
2060      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2061    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2062    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2063      as well as grad(vort3).  Made it compatible with both approximate form
2064      for the cubed sphere and full form of these gradients.  Added flag
2065      useFullLeith to select between approximate and full form.  
2066    o add "d0" in getcon.F to reduce differences between compilers/platforms
2067      update output.txt of exp. fizhi-gridalt-hs
2068    o change port_rand funtion to allow to set the seed.
2069    o fix obscure MNC bug involving conversion between reals and integers
2070      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2071        new version is now more standards-compliant
2072    o adjoint-related modifications
2073      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2074      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2075      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2076    
2077    checkpoint57e_post
2078    o Adding eddy stress controls a la Ferreira et al.
2079    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2080    
2081    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2082      update output.txt of exp. fizhi-gridalt-hs
2083    o add more "Z" dimensions and associated coordinate vars to MNC
2084    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2085    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2086      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2087      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2088      months and years.  Requires pkg/cal.
2089    o diagnostics: add pickup functionality
2090      - off by default for backwards compatibility
2091      - current version only uses MDSIO -- MNC will be added
2092    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2093    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2094    
2095    checkpoint57d_post
2096    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2097    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2098      output from the diagnostics package
2099    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2100    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2101      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2102    o add coordinate variables to the MNC output from the diagnostics package
2103    o change MNC-flags default value: true when useMNC=TRUE
2104    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2105      the ability (off by default) to read the grid information using MNC
2106    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2107    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2108    o do snap-shot diagnostics at the middle of the time-interval (instead of
2109      at the end).
2110    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2111      new test for AIM with thSIce + slab-ocean
2112    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2113    o move state variable diagnostics to the beginning of the time step ;
2114      (note: still needs some work specially for snap-shot diagnostics)
2115      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2116    
2117    checkpoint57c_post
2118    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2119    o generate new output.txt files on faulks with g77 & the new -ieee option
2120    checkpoint57c_pre
2121    
2122    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2123      update output.txt of exp. global_ocean.90x40x15
2124    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2125      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2126    o add saltFlux(+File) forcing capability with periodicExternalForcing
2127    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2128    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2129    o improvements for the MNC output from DIAGNOSTICS:
2130      - correct handling of the unlimitied dimension
2131      - all dims now have associated coordinate variables
2132      - variables located at U, V, and Corner ("Z") points are now written
2133        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2134        *all* data points are output
2135    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2136    o added pkg/seaice/seaice_monitor.F
2137    o mdsio_readfield.F can now read files visible only to master MPI process.
2138    o pkg/seaice: some test code for ice-modified ocean stress
2139    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2140      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2141      spurious negative numbers for precipitation and humidity.  Will cause
2142      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2143    o pkg/ctrl/
2144      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2145        May be enabled via doPackDiag
2146      *  introduce z-scaling of
2147         + gradient (doZscalePack) and
2148         + control (doZscaleUnpack)
2149    o pkg/mdsio/
2150      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2151      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2152    
2153    checkpoint57b_post
2154    o simplify options in diagnostics_fill arguments (remove weird combinations)
2155    o fix MNC coordinate variables so that they now contain per-face index
2156      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2157      general, EXCH2 grids are only aligned to a "local" coordinate system
2158    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2159    o Implement instantaneous output within pkg diagnostics:
2160      setting a negative frequency in data.diagnostics produces
2161     "snap-shot" output (as opposed to time-average if freq > 0)
2162    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2163      NOTE: change ptracer diagnostics name: use 2 characters to work with
2164            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2165    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2166      becomes the coordinate variable for the 'T' dimension
2167    o add CF-style coordinate variables to MNC
2168      - just a first cut:  numbers are meaningless on the cubesphere and
2169        missing along the T axis but otherwise it works!
2170    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2171    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2172    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2173      this is based directly on what the model compute, so that the content of
2174      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2175    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2176    o clean up build options files for SunOS, in particular
2177      - remove -traditional from xmakedepend
2178      - change -xarch=v9 to -xarch=native for f77
2179      - restore use of make (not gmake)
2180      - add CC=gcc if using g77
2181    o changes per discussion of AM, JMC, & EH3 today:
2182      - move redundant "grid" variables out of "state" -- in preparation of
2183        creating proper CF-style coordinate variables and in recognition
2184        that any/all grid variables can be easily copied (eg. w/NCO) from
2185        the grid files into any of the other NetCDF files
2186      - *always* output grid variables with MDSIO (this will eventually be
2187        changed)
2188      - output MNC grid file if useMNC is true
2189    o every instance of _END_MASTER() has been found and replaced with
2190      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2191      preprocessors
2192    o re-arrange diagnostics pkg initialisation:
2193     - allow each package to extend the available diagnostics list
2194     - add some checking and fix small problems (multi-threaded, ...)
2195     - new S/R diagnostics_fill (replace fill_diagnostics):
2196       look through the short list of active diag. (instead of the long list)
2197       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2198    
2199    checkpoint57a_post
2200    o this set of changes restores TAMC compatibility
2201      tested for global_ocean.90x40x15 adjoint on trough
2202      (what a pain)
2203    
2204    checkpoint57a_pre
2205    o some modifs in tools/build_options for sunos
2206    o call ctrl_pack for ctrl at end for optimcycle=0
2207    
2208    checkpoint57
2209    o add horizontal bi-harmonic viscosity for vertical velocity
2210      - new parameter viscA4W (defaults to viscA4)
2211      - affects only non-hydrostatic code
2212      - to be done: no-slip lateral boundary conditions
2213    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2214    o implement Implicit Vertical advection for pTracers
2215    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2216      (implemented also for implicit vertical diffusion & advection)
2217    o OBCS: extend application of tracer open boundary conditions
2218      to a strip beyond the boundary of width Olx/Oly
2219    o add call monitor to TAF set of required calls (flow directives)
2220      and include in natl_box_adjoint
2221    o untangle a few ifdefs related to cost, ctrl, autodiff
2222      untangel a few ALLOW_ECCO_OPTIMIZATION
2223    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2224      (theta2, salt2 in ecco_cost_weights)
2225    
2226    checkpoint56c_post
2227    o OBCS as control variables
2228      - update ctrl_ad_diff.list, obcs_ad_diff.list
2229      - remove balance of obcs controls from default
2230      - fix index bug nobcs in ctrl_init
2231      - fix dummy fields filen in ctrl_pack
2232      - add dummy weights for obcs
2233    o lsopt: comment out fort.94 output
2234    o optim:
2235      - remove unnecessary header files
2236      - adjusted namelists
2237      - add xerbla.F to Makefile
2238    o exf:
2239      - multiple modifications of exf_check_range
2240      - unit change in exf_init_runoff from [m/year] to [m/s]
2241    o mdsio:
2242      - i/o-vector change debugLevel from debLevA to debLevB
2243    
2244    checkpoint56b_post
2245    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2246      is called from DO_THE_MODEL_IO
2247      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2248      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2249      - clean up PTRACERS_WRITE_TIMEAVE a little
2250    o add another verification experiment that tests both the cfc-pkg and
2251      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2252      reactive tendencies treated inline with regular timestepping
2253    o testreport previously did a lousy job of comparing small numbers, so
2254      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2255      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2256      testreport.
2257    o ptracers_monitor: bug fix for MPI
2258    
2259    checkpoint56a_post
2260    o GCHEM: finish reorganizating the package
2261      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2262        (introduces another 3D-array for each passive tracer, but only if
2263        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2264        gchemTendency is not needed because the timestep is done separately)
2265      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2266      - GCHEM is now---more or less cleanly---separate from PTRACERS
2267      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2268        so clear to me how that should be done in a general way.
2269    o CFC: improve formatting of output in CFC_ATMOS
2270    o PTRACERS:
2271      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2272        that ALL experiments with ptracers enable can be checked. This makes
2273        GCHEM_MONITOR obsolete.
2274      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2275        monitorFreq
2276      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2277    o add PTRACERS (PTR0[1-5]) to testreport output
2278    o exf_check_range:
2279      * default changed to .TRUE.
2280      * will check values for niter0 if debLevA, every timestep if debLevB
2281      * STOP in exf_check_range if 'out of range'
2282      * range chosen generous to allow for potential extema
2283      TBD: a version with stricter range
2284           permitted range would be runtime parameters
2285    o GMredi:
2286      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2287      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2288      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2289    o GCHEM:
2290      - move call to GCHEM_FORCING_SEP, so that it is now called before
2291        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2292      - introduced a useGCHEM runtime flag and applied it everywhere.
2293      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2294        this flag is now only visible within GCHEM-pkg routines.
2295      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2296        be replaced by a 3D array that is computed before thermodynamics; for
2297        this, the tracer ID iTracer had to be included into the parameter list
2298        of ptracers_forcing
2299      - set up forward_step to call gchem_forcing, that will replace
2300        gchem_forcing_int in ptracers_forcing
2301      - cleaning up
2302    o small cleaning of exch2: remove files that are also in eesupp/src
2303    
2304    checkpoint56
2305    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2306    o mnc: cleanup "full" files--fixes out-of-memory problem
2307    o ECCO-GODAE
2308      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2309      * fully merged and updated from SIO code
2310        windstress sign change affects
2311        - exf_inscal_[u/v]stress
2312        - sign of xx_tau[u/v] adjustments
2313        - signs in cost_scat
2314      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2315      * natl_box_adjoint updated and compressed
2316      * 2-level checkpoint switch added
2317        (tested in EXP. 1 of natl_box_adjoint)
2318      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2319    o SVD
2320      * first complete, non-hacked version for SVD calculations
2321      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2322        performed via direct access files admtlm_vector.it????
2323        (via ctrl_[un]pack)
2324      * optimcycle is used for ARPACK iteration counter
2325        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2326      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2327        and add linear transforms where necessary
2328      * controls are initial/final SST, SSS (can be extended; need to check
2329        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2330    o mdsio: filename info to both stderr, stdout
2331    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2332      from sign change
2333    
2334    checkpoint55j_post
2335    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2336      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2337    o add consistent build directories and .cvsignore files to verification
2338    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2339    o make all subroutines 30 or less characters in length for certain older
2340      compilers to work (a thorough search only turns up two routines in
2341      pkg/ptracers)
2342    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2343      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2344    
2345    checkpoint55i_post
2346    o change arrays for total vertical diffusivity (2.D if explicit,
2347      3.D if implicit) ; each ptracer uses its own background value.
2348    o added mnc/NetCDF output capability to ocn_compon_interf
2349      - added bits to verification/cpl_aim+ocn so that it can run on
2350        ITRDA and other clusters without the mpirun "-wd" option
2351    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2352      configuration
2353    o give MNC the ability to create additional files rather than
2354      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2355      - the default is just less than 2GB which is a practical limit
2356        on many systems
2357    o Compute the non-local term using either KPP vertical diffusivity (=default)
2358       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2359    
2360    checkpoint55h_post
2361    o add verification test "vermix"
2362    o remove all the *_ioinc flags and replace with the single global
2363      outputTypesInclusive flag
2364    o allow to set a vertical profile of vertical diffusivity for T & S
2365    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2366    o useMNC moved from data.mnc to data.pkg
2367    
2368    checkpoint55g_post
2369    o Renaming carbon AD experiments to comply with testreport conventions
2370    o Updating adjoint of Held-Suarez hs94.1x64x5
2371    o Fixing directives for non-ECCO forward_step, after ECCO directives
2372      have been fixed to avoid recomp. of do_oceanic_phys
2373      Works well for global_ocean.90x40x15,
2374      but recomp. issue remains for carbon
2375    o Updating adjoint output for natl_box_adjoint after
2376      pkg/ecco has been modified (see taga c55d_post)
2377    
2378    checkpoint55f_post
2379    o rename to timeave_init_fixed
2380    
2381    checkpoint55e_post
2382    o some delicate re-shuffle of store directives to avoid one
2383      extra call of do_oceanic_physics
2384      affects ecco_the_main_loop.F, do_oceanic_physics.F
2385      checkpoint_lev1_directives.h
2386    o NB: this may break global_ocean adjoint temporarily,
2387      but it is clear how to fix it. Will do later, need this now.
2388    
2389    checkpoint55d_post
2390    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2391    o ecco_cost_weights is modified to 1x1 runs
2392    o modifs to allow observations to be read in as
2393      single file or yearly files
2394    o enable to read exf forcing fields as either
2395      single file or yearly files (flag useExfYearlyFields)
2396    checkpoint55d_pre
2397    
2398    o switch between 2-level and 3-level checkpointing
2399    o add ability of MNC to write local and "partial" (eg. 2D slices where
2400      the full 3D field is never actually stored) arrays to NetCDF files
2401      with the correct (that is, the complete multi-dimensional) set of
2402      array indicies
2403      - used in mom_vecinv() to write the diagFreq output
2404      - tested (demonstrated) in verification/aim.5l_cs
2405    o further mnc-ification
2406      - add verification/lab_sea to the list with mnc setups
2407      - fix undefined mnc v-names in cd_code
2408      - add kpp to mnc output (both snapshot and timeave)
2409    o non-hydrostatic code
2410      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2411        in calc_gw.F
2412      - defaults to viscAh
2413      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2414        friction or Leith) in non-hydrostatic mode, as long as there is
2415        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2416    o pkg/cost
2417      extend simple cost functions to treat time mean quantities
2418      (T,U,V) via cost_accumulate_state from cost_tile
2419    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2420        be 2 times larger than the minimum size the advection scheme requires.
2421        now get a perfect conservation of salt in advect_cs test-exp (updated)
2422    o GGL90 (Gaspar's TKE mixed layer)
2423      - add horizontal diffusion of TKE, requires exchanges in
2424        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2425        default. In OPA there is no horizontal diffusion of TKE but the
2426        mixing coefficients are computed from a horizontal average of TKE of
2427        6 points or so. I think that diffusion has a little more physical
2428        justification.
2429      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2430        was in vain)
2431      - mask tke-variable in ggl90_init
2432    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2433    o fix biharmonic diffusion on CS-grid.
2434    o more obcs stuff
2435      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2436        for reading boundary values. This routine is called from
2437        obcs_prescribe_read
2438      - updated obcs_check
2439      - changed sponge layer relaxation parameter units for days to seconds
2440      - turned off sponge layer by default
2441      - changed argument list of OBCS_CALC to myTime+deltaTclock
2442      - fixed about 35 bugs in obcs_external_fields_load
2443    
2444    checkpoint55c_post
2445    o obcs stuff
2446      - new runtime flags useOBCSprescribe, useOBCSbalance
2447      - re-arranged obcs_calc
2448      - moved exf_getobcs to obcs_prescibe_read
2449        obcs_prescibe_read is called after ORLANSKI stuff
2450        and independent of it (executable can contain all).
2451      - updated obcs_check
2452      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2453        These may be necessary only if tangential velocities are
2454        prescribed at OB, not sure, needs testing.
2455    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2456      which simplifies the calls and passes the ifc check-bounds test
2457    
2458    checkpoint55b_post
2459    o add a 2D scalar, Z location, exchange_2 routine.
2460    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2461      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2462      affects advect_cs results (for the wrong reason): update output.txt
2463    o use a more standard discretization for biharmonic viscosity ;
2464     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2465      affects results of dome set-up: update output.txt
2466    o fix gad_advection.F (CubedSphere part), back to version 1.23
2467    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2468    
2469    checkpoint55a_post
2470    o merged code to
2471      * prescribe/read time-dependent open boundaries
2472        (works in conjunction with exf, cal)
2473      * sponge layer code for open boundaries
2474      * each boundary N/S/E/W now has its own CPP option
2475        (healthy for the adjoint)
2476    
2477    checkpoint55
2478    o up-to-date adjoint of previous breaks
2479      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2480      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2481      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2482      - carbon: * remove tr1-related adjoint verification
2483                * add ptracer as control variable
2484    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2485      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2486    
2487    checkpoint54f_post
2488    o in verification/carbin/ remove experiment related to
2489      ALLOW_PASSIVE_TRACER (array tr1 etc)
2490      code_ad/ input_ad/ results_ad
2491    
2492    o add two new packages
2493      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2494        + subject to optimization (memory)
2495      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2496        + subject to reordering (many GOTOs in the original code)
2497        + so far opps is called for every (i,j) point, and then operates in
2498          the vertical; one may want to reorder the scheme in order operate in
2499          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2500          fields)
2501    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2502      - all verification tests compile and run with linux_ia32_g77
2503      - defaults are compatible with current input files--nothing
2504        should change if you were not previously using MNC
2505      - MNC output has been added in numerous places (eg. timeave)
2506        but there are still a few writes not yet do-able with MNC
2507        (this is in progress)
2508      - flags now allow for either/or/both use of MDSIO and MNC and
2509        documentation will soon follow
2510      - numerous small formatting cleanups for ProTeX
2511    o add version info (via BUILD_INFO.h) to MNC and stdout
2512    
2513    checkpoint54e_post
2514    o add two new packages
2515      - pp81 (Packanowski and Philander, 1981), Richardson number and
2516        stratification dependent mixing
2517      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2518      - these scheme operate in a similar manner as KPP (without ghat, of
2519        course), however there is only one diffusivity that is used for both
2520        temperature and salinity (and passive tracers)
2521    o add offline package
2522    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2523      provided by Stephanie Dutkiewicz
2524    o genmake2: add ability to search for C compilers and cleanup test output
2525      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2526    
2527    checkpoint54d_post
2528    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2529    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2530      leading to additional shift by 5 days each year of integration
2531       (i.e. leading to considerable offset over the years)
2532    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2533    o start with no AB and no initial filtering (staggerTimeStep):
2534      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2535    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2536      (external loading & cpl import/export stay in forward_step.F)
2537    o update coupling interface to work with new staggerTimeStep
2538    o change MDSIO ptracers_pickup.
2539    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2540    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2541    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2542    
2543    checkpoint54c_post
2544    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2545      this affects (truncation error) output.txt of test-exp:
2546       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2547    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2548    o change Qnet to always be the net heat flux, (+upward).
2549      affects (truncation error) output of natl_box exp.: updated
2550    o define the max number of passive tracers in PTRACERS_SIZE.h
2551    o start to test mnc routinely in exp0
2552    o add sea-ice loading (sIceLoad) as a new forcing field.
2553    
2554    checkpoint54b_post
2555    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2556       impressive on Altix and Opteron systems)
2557    o diagnostics can now write NetCDF files through the mnc package
2558    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2559    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2560    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2561      affects (truncation error) output of lab_sea & natl_box exp.: updated
2562    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2563    
2564    checkpoint54a_post
2565    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2566    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2567    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2568    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2569      + internal_wave (shift in writing cg2d_ini_res)
2570    checkpoint54a_pre
2571    
2572    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2573      - modified verification/lab_sea and natl_box_adjoint accordingly
2574    
2575    checkpoint54
2576    checkpoint53g_post
2577    o prepare splitting of thermodynamics: store convect.counter in common block
2578    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2579      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2580    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2581    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2582    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2583    o restore adjointability
2584    
2585    checkpoint53f_post
2586    o modifications that affect AIM experiment results (update output.txt):
2587      - no advection of S at top interface Nr (pkg/generic_advdiff)
2588      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2589    o AIM pkg:
2590      - include stability function into surf.Flux derivative relative to Tsurf
2591      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2592    
2593    checkpoint53e_post
2594    o merged cylindrical coord configuration
2595    o added rotating_tank experiment
2596    checkpoint53e_pre
2597    
2598    checkpoint53d_post
2599    o faulks upgraded: re-generate output.txt that have changed:
2600       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2601    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2602    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2603    o added Sadourny discretization of Coriolis
2604      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2605      - re-enabled use of omega3 (useAbsVorticity)
2606    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2607      vector-invariant equations
2608      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2609    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2610      hopefully without new bugs
2611      - still to do: biharmonic friction for non-hydrostatic w
2612    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2613    o regenerated output for global_ocean_ebm (using -ieee)
2614    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2615      of mom_common/
2616      - simple re-arrangement of instructions within computing loop
2617    checkpoint53d_pre
2618    
2619    checkpoint53c_post
2620    o new version of coupler for AIM+thSIce and Ocean models
2621     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2622     - land: change Evaporation of snow
2623     - aim with thSIce: fix bug in snow-precip.
2624    o changes to calc_gw.F
2625     - bug fix for w^2 term near the bottom boundary
2626     - (hopefully) improve the lateral slip boundary condtions for use with
2627        partial/looped cells
2628      - because the bug fix changes two verification experiments anyway (exp5
2629        and plume on slope), change the lateral boundary condition from half slip
2630        to the value of no_slip_sides
2631    o ebm package wasnt quite up to the parallel task. Fixed that.
2632    o Adjoint of EBM package + verification
2633      * TLM OK
2634      * ADM not sufficient accuracy yet (needs further testing)
2635    
2636    checkpoint53b_post
2637    o Commiting new energy balance model to repository
2638      * package is pkg/ebm
2639      * verif. is verification/global_ocean_ebm
2640      * references are in ebm_driver.F
2641    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2642    C        Global thermohaline circulation. Part I:
2643    C        Sensitivity to atmospheric moisture transport.
2644    C        J. Climate 12(1), 71-82
2645    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2646    C        Global thermohaline circulation. Part II:
2647    C        Sensitivity with interactive transport.
2648    C        J. Climate 12(1), 83-91
2649    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2650    C        Destabilization of the thermohaline circulation
2651    C        by atmospheric eddy transports.
2652    C        J. Climate 7(12), 1870-1882
2653    o Will need long integration testing.
2654    checkpoint53b_pre
2655    
2656    o created pkg/mom_common in preparation for variable viscosity code
2657    o renamed and split ini_mnc_io
2658    o pkg/land: only liquid water can diffuse or run-off
2659    o AIM using land: soil wetness availability account for snow
2660    o added printMapIncludesZeros to EEPARMS namelist
2661    
2662    checkpoint53a_post
2663    o restore TAMC compatiility for exf_constants.h
2664      (no usage of _d in .h)
2665    o Additional storing in KPP in an attempt to fix
2666      TAMC problem with adjoint of KPP code.
2667      (no success...)
2668      Identical code works fine with TAF.
2669    o Fixed verification/natl_box_adjoint experiments.
2670      Initial conditions for Experiments 4 and 5 are now
2671      set to "SEAICE_initialHEFF=0", which is more reasonable,
2672      and hence gives results closer to that of Experiment 2.
2673      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2674    
2675    checkpoint53
2676    o stable checkpoint with up to date adjoint
2677      TLM tests only run for 1st grdchk at the moment. Its unclear if
2678      this is a code problem or a problem with resetting code for g_
2679      variables that is being autogenerated wrong.
2680      Otherwise:
2681       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2682       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2683         are both still in chaos following their security messes.
2684    
2685    checkpoint52n_post
2686    o various build (mostly genmake2) changes including:
2687      - ability to build/run more easily within Cygwin and MacOS X
2688      - more complicated Makefiles with a stronger dependence on Gnu Make
2689    o pkg/seaice modifications
2690      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2691        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2692        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2693      - changed proxy for geostrophic velocity and updated
2694        verification/lab_sea/results/* accordingly
2695      - removed ADI dynamic solver from pkg/seaice
2696      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2697        they caused a segmentation fault under certain circumstances
2698      - removed unused field WATR
2699    o bug fix in exf-package:
2700      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2701         now reflect that.
2702    o small fixes in the cal-package:
2703      - set reference date to first of January for the 'model'-calendar
2704      - failing of cal_CheckDate in cal_FullDate now actually results in a
2705        warning
2706    o small modifications in exf-package to increase flexibility:
2707      - change climtempfreeze from a constant to a runtime parameter that
2708        is specified in data.exf_clim (default = -1.9)
2709      - introduce runtime parameter windstressmax (default = 2.0) that is
2710        specified in data.exf
2711    o fix in pkg/thsice:
2712      - update Evap (Tsf changes) to be consistent with Latent heat flux
2713      - maintain snow precipitation unchanged (even if Tsf >=0).
2714     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2715    
2716    checkpoint52m_post
2717    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2718      this does not change any of the results, because myIter=0 in swfrac always
2719      lead to jwtype=2 (the default anyway), but the call makes little sense
2720      as a default
2721    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2722    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2723      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2724    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2725    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2726    o extending useSingleCpuIO option to work with new exch2 I/O format
2727      - old-style, missing-tile I/O is still accessible by defining CPP
2728        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2729    o monitor package can write to NetCDF files and/or STDOUT
2730    o fix re-definition bug in MNC_GRID_INIT_ALL()
2731    o doc/api_reference added
2732      - a framework for building an API Reference Manual using all
2733        the "protex" comments embedded in the code
2734      - see pkg/generic_advdiff, pkg/mnc for examples
2735    o MNC:
2736      - make myThid the last argument for all subroutines
2737      - new default for the grid files: NO halos
2738      - add useMNC and other run-time flags
2739      - separate per-file-group handling of the unlimited dimension
2740      - early initialization of MNC w/ flags read at the eeboot stage
2741        and lookup tables set in initialize_fixed
2742      - write all MNC output to a freshly-created directory
2743    o thermodynamics sea-ice (thsice) is now tested with testreport.
2744    o test exp. advect_cs: use the standard cs32 grid ; update output.
2745    o Added functionality to grdchk:
2746      pick global i,j,k position (or nearest wet) where to perform check.
2747    
2748    checkpoint52l_post
2749    o new land formulation:
2750      a) use ground enthalpy as prognostic variable to ensure exact
2751         energy conservation.
2752      b) account for water temperature and for latent heat of freezing
2753         in all processes (rain, run-off, ground storage)
2754      c) compute surface and ground temperature implicitly.
2755    o aim_v23 modification for new land model:
2756      a) Treat separately land / ocean / sea-ice surface fluxes
2757         to allow implicit computation of land & sea-ice surface temp.
2758      b) add snow precipitation.
2759    checkpoint52l_pre
2760    
2761    o fix problem (when 1 tile is empty) in min/max monitor.
2762    o fix bug in timeAve (u,vZetatave in common block)
2763    o no restoring terms under ice for pkg/seaice
2764    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2765    o bug fix for pkg/seaice pickups
2766    o change MNC call locations and add coordinate attributes
2767    o mask vorticity at the corner ; affects global_ocean.cs output
2768    o fix ini_curvilinear_grid ; test CS experiments with mpi
2769    o aim.5l_cs: modify sea-ice fraction input file ; update output
2770    o exf: Adding simple range check routine for exf fields after read
2771    
2772    checkpoint52k_post
2773    o removed top-level directory "diags"
2774      - we migrated these functions to pkg/timeave a long time ago
2775    o fixed bug introduced in pkg/monitor
2776    o accuracy ctrlprec = 32 insuffient for gradient checks using
2777      averaged fields (I/O via cost_averages)
2778      -> use ctrl.h in active_file*.F to control I/O precision.
2779    o paramter list of CALL ADTHE_MAIN_LOOP
2780    o added initial do_the_model_io to ecco
2781    o set all ...Freq to zero after cost_final
2782      taveFreq, dumpFreq, pChkptFreq
2783    o MAIN and ECCO differentiability restored
2784    
2785    checkpoint52j_post
2786    o fix nchklev in tamc.h for global_ocean...
2787    o Bringing flow and store directives up-to-date
2788    o Really weird thing!
2789      call do_the_model_io from the_main_loop with parameters
2790      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2791      TAF places a faulty re-call of initialise_varia
2792      after cost_final call which should not be there!
2793    checkpoint52j_pre
2794    
2795    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2796      error messages
2797    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2798    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2799      debug output
2800    o modfied mdsio_writefield.F to handle non-global files under exch2
2801    o update AIM Cubed-Sphere exp (aim.5l_cs):
2802      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2803    o update AIM Equatorial Channel exp:
2804      use standard aim_v23 pkg and change the SST fields to be more realistic.
2805    o globalFile now works with exch2
2806    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2807      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2808    o limit timeave output for hi-res integrations
2809    
2810    checkpoint52i_post
2811    o removed CPP_EEOPTIONS.h from verification/*/code
2812    o updated the tiling for global_ocean_pressure
2813    checkpoint52i_pre
2814    
2815    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2816      the old pkg/aim).
2817    
2818    checkpoint52h_pre
2819    o shortened offending lines in exch2_send_rx?.template
2820    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2821    o genmake2: add build & execute test for NetCDF code
2822    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2823      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2824    o added useSingleCPUIO flag to monitor.F and mon_out.F
2825    o added temporary hack for sea-ice dynamics on the cube:
2826      metric terms are ignored and it is assumed that
2827      there is no sea-ice on cube faces 1, 2, 4, and 5.
2828    
2829    checkpoint52f_post
2830    o added exch2 cube routines to pkg/exch2
2831    o modified hs94.cs-32x32x5 to use it
2832    o added new grid files to hs94.cs-32x32x5
2833    checkpoint52f_pre
2834    
2835    checkpoint52e_post
2836    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2837      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2838    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2839      to work with implicit vertical advection and AB ;
2840    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2841    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2842     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2843    checkpoint52e_pre
2844    
2845    o fix bug in impldiff when Nr=1 or Nr=2.
2846    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2847    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2848    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2849      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2850    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2851    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2852    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2853    
2854    checkpoint52d_post
2855    o re-tiled many expts to allow comparison in multi-processor mode
2856      - updated output accordingly
2857      - changed hs94.128x64x5 to use intial T from file rather than use the
2858        random number generator
2859    o add infrastructure in model routines for fizhi and gridalt packages
2860    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2861    o changes to permit hi-res, cubed-sphere, configuration
2862      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2863      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2864      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2865        of surface winds for the cube
2866      (A verification experiment, based on global_ocean.cs32x15, but with
2867       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2868       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2869       complete with example surface forcing files and matlab scripts to look
2870       at the output and compare it with that of global_ocean.cs32x15.)
2871    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2872       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2873       to conform to the common rule.
2874    o check-in the first version of the coupler + interfaces for multi-components
2875       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2876       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2877       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2878       - ocean and atmos. share the same horizontal grid (no interpolation).
2879       - exchanges between component and coupler is done in forward_step
2880    o new verification experiment, cpl_aim+ocn:
2881       coupled ocean - AIM atmosphere on cs32 grid.
2882    
2883    checkpoint52d_pre
2884    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2885    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2886    
2887    checkpoint52c_post
2888    o Fixing OPTIONS files for use of exf:
2889      - ALLOW_ECCO not needed
2890      - ECCO_CPPOPTIONS.h should not be included from
2891        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2892        as has been the case in the past
2893      - All cal/exf related options are currently set in
2894        single header file. Should remain so until we
2895        agree on a consistent new policy.
2896    o Removed all CPP options for cal package.
2897      cal has no more CPP options.
2898    o modified STOREs in GAD_ADVECTION
2899    o corrected key comp. for passkey
2900    
2901    checkpoint52b_post
2902    o new version: "thsice" of thermodynamic sea-ice pkg:
2903     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2904     - modify fluxes but do not change theta directly;
2905     - light cleaning of bulk_force pkg (still needed with thsice).
2906     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2907       + output_thsice.txt to test thsice & bulk_force pkgs.
2908    o put back grid & coriolis monitor output.
2909    checkpoint52b_pre
2910    
2911    o call "do_the_model_io" at the beginning (=> dump initial state)
2912    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2913    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2914      (need info on NUMBER_OF_PTRACERS)
2915    o missing PTRACERS headers in some routines
2916    o default tamc.h in pkg/autodiff supposed to crash
2917      to ensure proper customization
2918    
2919    checkpoint52a_post
2920    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2921      - moved surfaceTendencyTice from pkg/seaice to main code
2922      - subroutine FREEZE_SURFACE now limits only surface temperature
2923        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2924        => new output.txt for global_ocean.cs32x15 & global_with_exf
2925      - keep the old version of FREEZE for backward compatibility;
2926        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2927      - corresponding modifs for TAF directives
2928    o added surface flux output variables to TIMEAVE_STATVARS
2929    o time-averaged output for pkg/ptracers
2930    o fix problem with ECCO-related divided adjoint
2931      snapshot file was missing some ad-variables,
2932      but no warning issued by TAF
2933    
2934    checkpoint52a_pre
2935    o some bug fixes for #undef REAL4_IS_SLOW
2936    
2937    checkpoint52 = ecco_c52_e35
2938    o after testing adjoints of checkpoint51u_post
2939    
2940    checkpoint51u_post
2941    o this is the post-merge tag of the ecco-branch
2942      (needs another clean checkout and re-testing)
2943    o various natl_box_adjoint configs and results
2944      but no input fields
2945    o obcs adjoint not yet merged!
2946    o adding ECCO global 1x1 and 2x2 degree configs
2947    o updated/extended some store directives for seaice
2948    o pkg/ecco now containes ecco-specific part of cost function
2949    o top level routines the_main_loop, forward_step
2950      supersede those in model/src/
2951      previous input data.cost now in data.ecco
2952      (new namelist ecco_cost_nml)
2953    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2954    
2955    checkpoint51t_post
2956    o this is the pre-merge tag of the ecco-branch
2957    
2958    checkpoint51s_post
2959    o cleanup: removed various obsolete #define-s
2960    o pkg/grdchk
2961      - renamed 'ph-grd 3' to 'grad-res'
2962      - merged from ecco-branch
2963        (remaining bug fixes for obcs gradient checks)
2964      - additional high-precision output for testreport
2965        (grep for 'precision_grdchk_result')
2966    
2967    checkpoint51r_post
2968    o cleaned up or removed CPP_OPTIONS.h files
2969    o updated results for some of the tests to reflect the new
2970      optfiles (-ieee: -O0 instead of -O3)
2971    
2972    checkpoint51q_post
2973    o cd_code:
2974      - moved cd_scheme.F -> cd_code_scheme.F
2975      - separate read_checkpoint from cd_code_ini_vars.F
2976      - separated cd_code part from write_checkpoint
2977      - updated AD_SOURCE, generated .flow
2978      - added CD_CODE_VARS.h to the_main_loop
2979      - Moving cd_code specific store dir.s to pkg/cd_code
2980    o ctrl package totally restructured
2981      - pack/unpack now optional and decoupled from
2982        xx_/adxx_ I/O
2983      - ctrl_pack/unpack cleaned
2984        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2985      - confined inclusion of AD_CONFIG.h to where necessary.
2986    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2987    
2988    checkpoint51p_post
2989    o create initial cd_code package
2990      - WARNING: the initialization of fields within packages
2991        is broken because INI_FIELDS (where READ_CHECKPOINT is
2992        called) is called *before* PACKAGES_INIT_VARIABLES.
2993        This seems to be backwards since
2994        1) its important to initially zero the entire field including
2995           the "halo" region
2996        2) zeroing needs to be done *before* reading pickup info
2997           and the pickup call might or might not happen in any
2998           particular run
2999      - this needs an overhaul for R2
3000    o cleanup verification/*/code/GMREDI_OPTIONS.h
3001    o cleanup testreport
3002    
3003    checkpoint51o_post
3004    o bringing AD-related verif's up to date with genmake2
3005      - carbon/
3006      - global_ocean.90x40x15/
3007      - hs.94.1x64x5/
3008      - (front_relax/ )
3009    o (more) consistent directory structure for AD-related verif.'s
3010    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
3011    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
3012    o bug fix in find_alpha.F for MDJWF:
3013      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
3014        change rho -> rho-rhoConst
3015      - replace call find_rho to find_rhonum
3016    o initialisation of rFlx extended to full array (required by TAF)
3017      and shifted to thermodynamics
3018    o removed PTRACERS.h in ptracers routine
3019    o added surfacetendencyPtr to S/R parameter list pracers_forcing
3020    o Correcting initialisations for fVerU, fVerV.
3021    o helping TAF to recognize dependency on kUp for
3022      fVerU, fVerV
3023    o Replacing delZ by delR in pkg/ctrl/
3024    checkpoint51o_pre
3025    
3026    o undid all of cp51 pending some cleanups and discussion
3027    o added the [#include "AD_CONFIG.h"] statement to all files that need
3028       it for adjoint/tl #defines
3029     o re-worked the build logic in genmake2 to support AD_CONFIG.h
3030     o removed tools/genmake since it no longer works
3031    
3032    checkpoint51n_post
3033    o modifications to make FREEZE flux visible to pkg/kpp
3034      - moved surfaceTendencyTice from pkg/seaice to main code
3035      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
3036      - subroutine FREEZE now limits only surface temperature
3037        (this means new output.txt for global_ocean.90x40x15,
3038         global_ocean.cs32x15, and global_with_exf)
3039    o added surface flux output variables to TIMEAVE_STATVARS
3040    
3041    checkpoint51n_pre
3042    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
3043    o added [#include "AD_CONFIG.h"] to all files that use the following
3044      defines:
3045      - ALLOW_ADJOINT_RUN
3046      - ALLOW_TANGENTLINEAR_RUN
3047      - ALLOW_ECCO_OPTIMIZATION
3048    
3049    checkpoint51m_post
3050    o incorporating changes to get TAMC/TAF working in genmake2
3051      - added new TAMC/TAF targets to the Makefile
3052      - various cleanups related to package handling
3053      - these changes should have no impact on the forward model
3054    
3055    checkpoint51l_post
3056    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
3057     - faster algorithm for cal_addtime.F
3058     - higher precision arithmetic, where needed
3059     - pkg/exf *startdate variables changed from calendar date to
3060       model integration time
3061    
3062    checkpoint51l_pre
3063    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
3064    o enable to apply restoring on S & T only in a latitude band.
3065    o update output (external_forcing_surf modif. change truncation errors)
3066       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
3067    
3068    checkpoint51k_post
3069    o change default to: useNHMTerms=.FALSE.
3070     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
3071       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
3072     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
3073        exp1, ideal_2D_oce
3074     - change data file of oceanic exp (leave the results unchanged for now)
3075       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
3076    o set gravitySign automatically according to the vertical coordinate used
3077      (and change sign: back to "logical" value: +1 when R increases downward)
3078    o added an include barrier to the default CPP_OPTIONS.h and
3079      removed the #include "PACKAGES_CONFIG.h" from it
3080    o fix a bug in mom_fluxform (from chk51j_post)
3081    
3082    checkpoint51j_post
3083    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
3084    o adjusted some flow directives (dynamics, thermodynamics)
3085    o added cubed-sphere case to test cost function
3086    o heckpoint_lev?_directives.h now include
3087      pkg-specific directives, whenever those are enabled.
3088    o Moving pkg-specific flow directives to corresponding pkg
3089      Moving pkg-specific differentiation list to corresponding pkg
3090      Moving pkg-specific checkpoint-lev storing to corresponding pkg
3091      ---> conventions are
3092           - pkg_ad.flow
3093           - pkg_ad_diff.list
3094           - pkg_ad_check_lev?_dir.h
3095    
3096    checkpoint51i_post
3097    o merge of the branch-genmake2
3098      - knowingly breaks the older genmake
3099      - automatic generation of all ALLOW_${PKG_NAME} defines
3100      - new testreport supersedes older testscript
3101    o large number of package inclusion and header cleanups
3102    checkpoint51i_pre
3103    
3104    o new output for adjoin of global ocean vector invariant
3105    o fix for checkpoint of thermodynamic seaice and bulk_force
3106    o Steph gchem various cleanups
3107    
3108    checkpoint 51h_pre
3109    o fixed some single quotes
3110    o modify gchem pkg to be more versatile
3111    o modifications to clean up dic pkg
3112    o add pkg/cfc
3113    
3114    checkpoint51g_post
3115    o provide links for ARPACK and ADM*TLM
3116    o start removing verification/vero/
3117    o update AD-related stuff
3118      (in particular some IF-statements in model/src/ routines)
3119    o adding to verification/global_ocean.90x40x15/ adjoint of
3120      vector invariant setup
3121    
3122    checkpoint51f_post
3123    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
3124    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
3125      of tracer Green's fucntions for ocean inversion project.
3126    
3127    checkpoint51f_pre
3128    o Added on-the-fly spatial interpolation capability
3129        "USE_EXF_INTERPOLATION" to pkg/exf.
3130      - This is a temporary Cartesian-grid hack until
3131        the super-duper ESMF coupler becomes available.
3132      - See verification/global_with_exf/README for usage example.
3133      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
3134        flags and modified pkg/seaice accordingly.
3135    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
3136        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
3137        non-local transport term.
3138    
3139    checkpoint51e_post
3140    o pkg/mom_vecinv:
3141      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
3142      - add time-ave diagnostic of vorticity advection.
3143    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
3144    o atmospheric geopotential: - include water vapor effect;
3145                                - use p^kappa in p* scaling.
3146    o land pkg: read initial state from files.
3147    o AIM : add stratospheric drag in the upper level
3148    
3149    checkpoint51d_post
3150    o change function ILNBLNK (=> last non-blank char.) to return zero
3151      (instead of the string length) when the string. char is empty
3152    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
3153    o modif's to restore TAMC compatibility
3154      - avoid "_d" constructs in PARAMETER declarations
3155      - avoid interrupting lines by comment lines
3156    o Use cluster local disks for purely local I/O
3157      vs. globally visible disks needed for ctrl stuff
3158      (merged from ecco-branch)
3159      - new active_file_loc... and mdsio_..._loc routines
3160      - affected packages: autodiff, ctrl, grdchk, mdsio
3161    
3162    checkpoint51c_post
3163    o introducing integer flag debugLevel
3164      - debLevZero: suppress all output
3165      - debLevA: standard
3166      - debLevB: equivalent to current debugMode=.TRUE.
3167    o introducing pathname variable mdsioLocalDir for mdsio
3168      that can be specified at runtime
3169      (relevant for cluster I/O to local disk)
3170    `
3171    >>>checkpoint51b_post
3172    adjoint of ptracers
3173    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
3174    o extended state in checkpoint_lev?, etc.
3175    o alternative ctrl/cost with tr1 or ptracer
3176    o new comlev1_bibj_ptracers
3177    o new ptracers.flow
3178    o made ptracers_forcing same as external_forcing_s
3179    o added verification for adjoint with ptracers
3180      - adm. grdchk fail so far
3181      - tlm. grdchk OK
3182      - checked tapelev/comlev recomputations: OK
3183    <<<checkpoint51b_pre
3184    
3185    checkpoint51a_post
3186    o added code for biogeochemistry package
3187      - new pkgs: dic, gchem
3188      - new subroutine in ptracers
3189    o modify code for biogeo packages
3190      - in model/src and pkg/ptracers
3191    
3192    checkpoint51
3193    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
3194      - autodiff, ctrl, exf, grdchk, seaice
3195      kept separate packages
3196      - cost, ecco, obcs
3197    o updating verification/internal_wave, verification/lab_sea
3198      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
3199    
3200    checkpoint50i_post
3201    o Preparing next differentiable checkpoint and sync
3202      of MAIN vs. ecco-branch
3203      - 1st step: this one is differentiable
3204      - 2nd step: next(! not this) checkpoint will have updated packages
3205                  from ecco-branch)
3206    
3207    checkpoint50h_post
3208  o new package "land": provide surface BC for AIM.  o new package "land": provide surface BC for AIM.
3209  o pkg/ptracers: apply exchange to all tracers after reading a pickup.  o pkg/ptracers: apply exchange to all tracers after reading a pickup.
3210  o AIM: use true log-P extrapolation for near surface temp (= as in  o AIM: use true log-P extrapolation for near surface temp (= as in
3211      F.Molteni paper) ; update aim.5l_cs output.      F.Molteni paper) ; update aim.5l_cs output.
3212  o New variable in PARM03 for more flexible pickups  o New variable in PARM03 for more flexible pickups
3213    o somewhat cleaned package initialisation sequence for
3214      ctrl/ cost/ ecco/ in packages_... routines
3215    
3216  checkpoint50g_post  checkpoint50g_post
3217  o merged with release1_p17 (pkg/seaice and verification/lab_sea)  o merged with release1_p17 (pkg/seaice and verification/lab_sea)

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